Device for self-monitoring of learning content

Abstract

Device for self-monitoring of learning content, comprising a) at least one information carrier (22) in the form of a book (22) with (i) several sheets (23) connected to each other along a line, on each of which information in the form of task fields (4) and corresponding solution fields (5) is presented in a two-dimensional format, and with (ii) a cover (24) consisting of a front cover (25), a back cover (26) and a spine (27), as well as b) an opaque board (14;37) for covering at least one task and / or solution field (4,5), which is guided on the at least one book (22) such that it lies parallel to the base of a page (23) of the book (22) and is capable of relative displacement with respect to the page (23) in question parallel to its base, but only (anti-)parallel to a single spatial direction, characterized in that c) the device for the relative alignment of the book (22) with respect to the tablet (14;37) has two opposite narrow sides (13;33,34) which each abut an edge of the book (22), d) wherein a section through the device for the relative alignment of the book (22) with respect to the board (14;37) transverse to the permitted direction of displacement is either closed in itself, i.e. doubly connected, namely in the manner of a cuff (10) with a rectangular profile, consisting of a front (11) and a back (12) which are connected to each other by the two narrow sides (13), or C-shaped, i.e. simply connected, namely in the manner of a slider (29) with a C-shaped cross-section, consisting of a front (32) and one upper and one lower horizontal web as narrow sides (33,34), to which one of two narrow guide tabs (35,36) is attached at the rear, which lie in a common plane and are directed towards each other, e) wherein a board (14;37) which is at least partially writable, readable and erasable for temporarily fixing an answer (16;41,42) is provided on the front (11,32) of the device for covering a task and / or solution field (4,5), which temporarily and / or partially covers the task and solution fields (4,5), f) wherein the tablet (14;37) together with the device for the relative alignment of the book (22) with respect to the tablet (14;37) is designed as a covering encompassing the book (22), g) wherein the extent of the cover perpendicular to the permitted direction of displacement, but parallel to the book (22) corresponds to the distance between two enclosed edges of the open book (22) ± 10 %, h) and wherein two narrow sides (13;33,34) of the cover each have the same width or depth, which corresponds to the thickness of the closed book (22).

Description

[0001] The invention relates to a device for self-monitoring of learning content, comprising at least one information carrier in the form of a book with several sheets connected to each other along a line, on each of which information in the form of task fields and their respective corresponding solution fields is displayed in a planar manner, and comprising a cover consisting of a front cover, a back cover and a spine on the one hand, and on the other hand an opaque device for covering at least one task and / or solution field, which is guided on the at least one book in such a way that it lies parallel to the base of a sheet of the book and is capable of relative displacement with respect to the sheet in question parallel to its base, but only (anti-)parallel to a single spatial direction.

[0002] The written or visual recording of information for the purpose of conveying and learning it is widespread. This includes all textbooks, but also self-created vocabulary notebooks, etc. Acquisition usually occurs through repeated memorization of the learning content. To check whether the acquired learning content is readily available in memory, current technology requires a second person to ask questions, which the student then answers.

[0003] If a second person is not available, thorough checking is impossible. In this case, the student must cover the answer fields with one hand and try to give the correct answers from memory. However, the corresponding answer field should be uncovered immediately after each answer is found, so that the student can still recall the answer without any doubt and critically assess their own solution as correct or incorrect. This approach, however, lacks an overview of correct / known and incorrect / unknown answers, which is crucial for the learning process and would allow for monitoring and evaluating learning progress. Even if a tally of correct and incorrect answers is kept, it ultimately lacks information about which concepts have been mastered and which have not.

[0004] The student would therefore have to practice the same learning content repeatedly until the correct answer is memorized. However, from a learning perspective, it is not efficient to only repeat one learning topic, as previously acquired information is often forgotten when practicing other learning content.

[0005] Some devices for self-monitoring of learning content are already known.

[0006] DE 203 13 047 U1 discloses a learning aid in which several questions and / or answers arranged one below the other can be precisely and selectively covered and revealed successively on a learning tray made of cardboard, plastic, or wood for holding question and answer worksheets by means of a loose, rectangular learning slider using one-handed operation, by sliding the learning slider along an edge of the learning tray. However, such an arrangement is only suitable for the use of single learning sheets, so the learning effect is very limited.

[0007] German utility model DE 1 866 491 U describes a device for self-checking learning content, which can, for example, be integrated into a book. A transparent colored film is the same color as the solutions printed in the book, so that the solutions are not visible, but only the black-printed problems, which shine through the colored film. The colored film is attached to the book cover in such a way that it is suitable for covering any page. It can be moved either parallel or perpendicular to the book's binding, thereby revealing the initially concealed content of the page. The disadvantage is that when moved downwards, the film bulges increasingly, so that the view of the revealed page is partially obstructed by the bulge. When moved from left to right, however, a tunnel is created that reveals the lower right corner.Another disadvantage is the colored background, especially the proposed red color, as it is extremely tiring for the eyes to work on tasks that have to be read from a red background for extended periods of time.

[0008] US Patent 4,377,383 A discloses a learning aid in the form of a card dispenser. The cards are individually removed by hand from a box through a designated opening and placed on an accompanying tray with different sections, according to the learning strategy. The top of the box lid has a cutout, revealing a section of the information carrier on top of the box. A solution section on the same information carrier is covered by another section of the top of the box lid. This covered section is neither movable nor otherwise usable; rather, the information carrier on top must be removed from the box to read the solution section, which involves considerable effort.

[0009] Finally, US Patent 4,770,638 A relates to a learning aid with a stand for holding several card-shaped information carriers upright, wherein the stand is folded from a flat piece of material, such as cardboard. This stand has a pocket-shaped lower section into which the information cards can be inserted from above, such that they protrude from the front of the pocket to about half its height. A flap is molded into the bottom of the pocket, which can be folded up at the lower, front end of the card stack.Simultaneously, the back of the pocket extends to the top of the inserted stack of cards. From there, a cover molded into the top edge of the back can be swung forward over the stack and then folded down in front of the cards. This cover then connects to the flap folded up in front of the stack, creating a protective case for the card stack for storage and / or transport. Each card contains exactly one question and its corresponding answer. Therefore, after answering the question, a card must be removed and reinserted, for example, behind the stack, which is quite time-consuming.

[0010] The disadvantages of the described prior art give rise to the problem that initiated the invention: to create a means for critical and efficient self-monitoring of progress in acquiring learning content. This means of self-monitoring should be achievable with minimal effort and repeatable as often as desired in order to observe learning progress.

[0011] This problem is solved within the framework of a generic device by the characterizing features of the main claim.

[0012] The concept according to the invention thus comprises writing the answer(s) directly onto the cover device or a part (permanently) connected or connectable to it, while simultaneously holding the cover device in a specific relative orientation to the information carrier, so that the given solutions cannot be accidentally revealed. After answering, the board / cover device is moved until the relevant answer field becomes visible. The given answer can then be compared with the correct solution. The student immediately learns whether their answer was correct or not, thus enabling them to memorize it more effectively. The board is then erased. The cover device is moved forward until the next answer field becomes visible, and the student must consider and write down the corresponding answer. The board can also be attached to a part that is detachable from the cover device, for example, to...to be able to be folded together for storage (a plug-in connection and / or a magnetic connection are suitable for this purpose; however, this does not correspond to the normal case, where the board is connected to the cover device for the sake of simplifying the construction and also to prevent individual parts from getting lost. The device does not work with individual, flat information carriers, but with a plurality of sheets connected to each other in a book-, booklet-, or block-like manner).

[0013] By gripping the book at two opposite edges, the device for aligning it relative to the board prevents lateral movement. For this purpose, the device can have a single, continuous (C-shaped) cross-section or a double, continuous (O-shaped) cross-section, resulting in two opposing narrow sides that rest against each edge of the book. These narrow sides of the device for aligning the information carrier relative to the board each have the same width or depth, approximately corresponding to the thickness of the folded information carrier.This makes it possible to store a block-shaped or even two folded, book- or booklet-shaped information carriers within the device for relative alignment of the information carrier with respect to the board.

[0014] A cover formed by the table and the device for aligning the book relative to the table, and encompassing the book, ensures that it is guided with exceptional precision yet moves smoothly. This tight and therefore precise guidance is achieved because the cover's extent is perpendicular to the permitted direction of movement but parallel to the information carrier, roughly corresponding to the distance between two edges of an open book (+10%).

[0015] Several task and solution fields can be arranged on one sheet of the information carrier, e.g. an entire lesson.

[0016] The task and solution fields should always be arranged alternately in a row running along the potential direction of movement. In this way, the orientation of the guide element does not need to be changed when practicing different tasks successively.

[0017] By having at least one information carrier with two edges that are at least partially parallel to each other, relatively precise guidance of the board is possible. The parallel edges are preferably formed on a book or notebook cover or on a rigid back cover of a pad; therefore, it is not necessary to make the individual sheets of a document highly rigid.

[0018] If, as further provided by the invention, the board is bordered at least partially by a straight edge (running perpendicular to the direction of movement), the device for the relative alignment of the information carrier with respect to the board can be designed such that a free edge of the board always remains approximately parallel to a predetermined edge (running perpendicular to the direction of movement) of a task or solution field during any relative movement of the board. This ensures that all task and solution fields have the same or similar geometry and can be practiced sequentially by moving the information carrier by equal distances relative to the board.

[0019] If the board has approximately the same width and / or height (+10%) as the distance between two enclosed edges of an open information carrier, it covers the same across its entire width, and a solution field with a corresponding area is completely invisible while answering a given task.

[0020] The device for the relative alignment of the information carrier with respect to the board can be produced in a particularly simple way from a planar body, e.g. by bending its edges to form a body with a C-shaped cross-section.

[0021] It is within the scope of the invention that the device for the relative alignment of an information carrier with respect to the board is open at its end faces and therefore has the shape of a profile with (approximately) a constant cross-section, which is displaceable in its longitudinal direction with respect to the information carrier.

[0022] If the information carrier is designed to be detachable from the device for its relative alignment, the panel can be integrated or connected to the device for its relative alignment. In a preferred embodiment, these parts never need to be separated. Their connection reduces the risk of a part being lost.

[0023] Preferably, the extent of the cover in the permitted displacement direction corresponds to approximately 50 to 100% of the relevant dimension of the open, book-, block-, booklet-, or stack-shaped information carrier, preferably 50 to 80% thereof. This ensures that even larger solution fields can always be completely covered, and the board can be of a corresponding size, thus offering sufficient space to record even extensive solutions.

[0024] The invention recommends that the casing has at least one rectangular base into which one panel is integrated. With a C-shaped cross-section, there is only one such base and therefore only one possibility for attaching a panel; with an O-shaped closed cross-section, however, there are two such bases (front and back), and therefore two panels can be attached.

[0025] On the other hand, it is also possible that the device for the relative alignment of an information carrier with respect to the board is closed on one or both ends and thus has the shape of a case or box. In this case, it is particularly well suited for storing one or more book-, booklet-, block-, or stack-shaped information carriers, since these are enclosed on (almost) all sides and therefore can no longer be lost.

[0026] On the other hand, the book-, booklet-, block-, or stack-shaped information carrier must be accessible for page turning; this is the case if the device for the relative alignment of an information carrier with respect to the board has a preferably hinged or removable lid. This can be a molded flap, for example, for closing one end of a box in the manner commonly found in packaging; but also a completely removable lid such as that found, for example, on plastic boxes for playing cards, with a surrounding skirt that is slipped over the bottom of the box; or a construction similar to the familiar music cassettes with a hinged lid section.

[0027] Preferably, one flat side of the device for the relative alignment of an information carrier with respect to the board, in particular a hinged lid, is transparent. Through this transparent area, which can of course also encompass the entire box, the task and solution fields are visible, which are then only partially and / or temporarily obscured by the board.

[0028] To allow for a smaller visible area of ​​the information carrier when working on a task and a larger one for checking given answers, the device for aligning the information carrier relative to the board should include a guide for the sliding mounting of the board. Such a guide can have sections that encompass the board on two opposite sides. The sliding movement of the board can be unlimited, so that the board could even be removed, or it can be limited on one or both ends by a stop element, so that the board is difficult or impossible to lose.

[0029] Finally, it is in accordance with the teaching of the invention that the tablet has approximately the same or a smaller area than an open information carrier. This is a preferred value, as the tablet could, of course, be larger in some applications. On the other hand, optimal utilization of the required space is achieved when the tablet's perimeter is approximately matched to the perimeter of the open information carrier.

[0030] Further features, advantages, properties, and effects based on the invention will become apparent from the following description of a preferred embodiment of the invention and from the accompanying drawing. The drawing shows: Fig. 1 a block-shaped information carrier and a writable board in a perspective representation; Fig. 2 a means of writing on the board Fig. 1; Fig. 3 a book-shaped information carrier according to an embodiment of the invention in a perspective view; Fig. 4 a board with a device for moving the board relative to the information carrier Fig. 3 in a corresponding representation; Fig. 5 a first relative position between the information carrier from Fig. 3 and the board from Fig. 4; Fig. 6 a second relative position between the information carrier from Fig. 3 and the board from Fig. 4; Fig. 7 a book-shaped information carrier of a further embodiment of the invention in a perspective view; Fig. 8 a board with a device for moving the board relative to the information carrier Fig. 7 in a corresponding representation; Fig. 9 a first relative position between the information carrier from Fig. 7 and the tablet from Fig. 8; Fig. 10 a second relative position between the information carrier from Fig. 7 and the tablet from Fig. 8; Fig. 11 a third relative position between the information carrier from Fig. 7 and the tablet from Fig. 8; as well as Fig. 12 a fourth relative position between the information carrier from Fig. 7 and the tablet from Fig. 8.

[0031] The block-shaped information carrier 1 has several sheets 2 held together by a spiral binding 3, allowing them to be turned completely over individually. The block 1 has a rectangular base. Each sheet contains task fields 4 with information presented in two-dimensional form, in this example, illustrations of geometric solids, as well as corresponding solution fields 5, in this case labeled 7 with the names of these solids. These fields 4, 5 can border each other along a horizontal line 6.

[0032] A sleeve 10 is slidable along the parallel side edges 8 of the block 1, to which the side edge 9 with the spiral binding 3 runs perpendicularly. This sleeve has an approximately rectangular profile with a recess approximately corresponding to a cross-section through the block 1 along a horizontal line between its two side edges 8. This results in a structure of the sleeve 10 with two rectangular base surfaces – a front 11 and a back 12 – which are connected to each other by two narrow sides 13.

[0033] The width of the front and back 11, 12 corresponds approximately to the width of the block 1 between its side edges 8, while the height of the cuff 10 or of the front and back 11, 12 and of the two narrow sides 13 corresponds approximately to half the height of the block 1.

[0034] A panel 14 is arranged on each of the front and back surfaces 11, 12, preferably being congruent with the respective front and back surfaces 11, 12. The panels 14 each consist of an opaque material on which the answers 16 to the given tasks 4 can be written with a pen 15. These answers 16 are legible and can be erased with an eraser 17.

[0035] Cuff 10 is placed over block 1 and adjusted, i.e., moved, so that its upper edge 18 aligns with line 6 between a task field and a solution field 4, 5, thus making task field 4 visible while concealing the corresponding solution field. Answer 15 is then written on board 14; subsequently, cuff 10 is slid down so that solution field 5 is also visible and can be compared with answer 15.

[0036] A horizontal marking line 19 runs along the center of sheet 2. The label 7 above this marking line 19 is upright, while the label 20 and the illustrations 21 below this marking line 19 are upside down. Once the top edge 18 of the sleeve 10 reaches the marking line 19, all tasks above the marking line 19 are solved. Now, the block 1, including the sleeve 10, is turned upside down, and the sleeve 10, which is initially at the very top, is gradually slid down again until the task and solution fields 21 and 20 become visible on this half of the sheet.

[0037] Once all these tasks are solved, block 1 is turned over so that the tasks on the last sheet 2 can then be solved, for which the other board 14 on the back 12 is used.

[0038] In the Fig. Figures 3 to 5 illustrate an embodiment of the invention. This differs from the first embodiment in that the information carrier has the form of a book 22, the individual pages 23 of which are connected to one another along a line; furthermore, it has a cover 24 with a front cover 25 and a back cover 26, as well as a spine 27. As with block 1, the individual pages 23 each bear task fields 4 and solution fields 5 with dividing lines 6 between them. There is also a horizontal marking line 19.

[0039] A sleeve 10, which can be identical to the one described above, is also used to solve tasks 4. Its width corresponds to that of the open book 22, while its height is approximately half the height of book 22. Since the cover 24 of book 22 does not contain any task or solution fields 4, 5, the sleeve 10 bears a plate 14 only on its front 11, but not on its back 12. The width of the narrow sides 13 of the sleeve 10 corresponds approximately to the thickness of book 22, so that it can be inserted into the sleeve 10 when folded, possibly alongside a second, stored book 22 with different learning content. Alternatively, the height of book 22 could also correspond to the width of the open book 22, so that the sleeve 10 could be slipped onto the side of book 22 when not in use.

[0040] Since the binding in the area of ​​the book spine 25 has a certain elasticity, the cuff 10 is also held in place by friction against the open book 22. In a first position according to Fig. In step 5, only task field 4 is revealed, while the corresponding solution field 5 remains hidden. After answer 16 has been written on board 14, book 22 is pulled out further, revealing solution field 5 so that answer 16 can be compared.

[0041] The Fig. Figures 7 to 12 show a further embodiment of the invention, in which the information carrier also has the form of a book 22. A special feature of this book, however, is that in addition to task fields 4 and solution fields 5 with a written, readable solution text 7, it also contains coded solutions 28. In the example shown, these are a plurality of preferably straight lines, the position and direction of which are characteristic of each solution.

[0042] In conjunction with such an information carrier 22, a slider 29 can be used, which grips the book at its top 30 and bottom 31, similar to a slider on a slide rule. While the front surface 32 of the slider 29 is continuous, a narrow guide tab 35, 36, parallel to each of the upper and lower horizontal ribs 33, 34, is attached at the rear. A gap remains between the two guide tabs 35, 36, which lie in a common plane and are directed towards each other, so that the slider as a whole has an approximately C-shaped cross-section. The slider 29 can be made of a transparent material, e.g., a transparent plastic. On its front surface 32, the slider 29 carries a plate 37, which consists of an opaque, writable, readable, and erasable material. The plate 37 is only half the size of the front surface 32 and covers only its right half. Fig. 8.

[0043] The Fig. Figures 9 to 12 show different relative positions between book 22 and slider 29 corresponding to different learning phases: In the position according to Fig. In position 9, the slider 29 is adjusted so that the opaque panel 37 completely covers the right-hand page 23 of the open information carrier 22, while the left-hand page 23 is visible through the left half of the transparent slider 29. Therefore, the task fields 4 – in this example, a series of geometric shapes whose names are to be learned – and the answer fields 5 are recognizable. The answer fields 5 contain the desired names, but not in the correct order, and it is now the learner's task to find the correct sequence.

[0044] For this purpose, each task field 4 has a marker point 38 and each solution field 5 has a marker point 39. As soon as the learner believes he has found a correct correspondence between a task field 4 and a solution field 5, he places a ruler 40 at the relevant marker points 38, 39 of these fields 4, 5 and draws a line 41 along the ruler 40 on the board 37.

[0045] Once all task and solution fields 4, 5 have been matched, the answers, i.e., the matching in the form of lines 41, can be checked. For this purpose, the slider 29 is moved to the right along book 22 until the solutions 28, which are also coded in lines, are visible on the right-hand page 23 of the open book 22.

[0046] This relative position is in Fig. 10. A given answer is correct if and only if there is exactly one corresponding solution line 28 for each drawn assignment line 41. If no answer line 41 aligns with every corresponding solution line 28, then at least one answer is incorrect. In this case, the answer lines 41 are deleted, and the exercise is repeated.

[0047] By repeating the exercise several times if necessary, Fig. 9 and Fig. The learner memorizes the correct solutions in 10 steps. After correctly matching all the solutions, he can then move on to the next exercise according to the instructions. Fig. Skip to 11.

[0048] Here, the slider 29 is first moved to the left of the book 22 until only a part of the left page 23 of the open book 22 is visible, namely the left column with the task fields 4. Now the student's task is to write the solutions to these tasks 4 - in the present example, the names of the geometric solids - to the right of task field 4 on the board 37 42.

[0049] Once this has been done, slider 29 is moved all the way to the right into the position after Fig. 12 shifted so that the right-hand page 23 of the open book 22 is also completely visible.

[0050] There, in addition to the line-coded solutions 28, the learner will now also find the written-out solutions 5 in the correct order and can compare them with his handwritten answers 42.

[0051] Therefore, the first exercise according to Fig. 9 and Fig. While exercise 10 primarily serves to memorize the meaning of the individual words, the second exercise can be used to practice the correct spelling of the words in question.

Claims

[1] Device for self-monitoring of learning content, comprising a) at least one information carrier (22) in the form of a book (22) with (i) several sheets (23) connected to each other along a line, on each of which information in the form of task fields (4) and corresponding solution fields (5) is presented in a two-dimensional format, and with (ii) a cover (24) consisting of a front cover (25), a back cover (26) and a spine (27), as well as b) an opaque board (14;37) for covering at least one task and / or solution field (4,5), which is guided on the at least one book (22) in such a way that it lies parallel to the base of a page (23) of the book (22) and is capable of a relative displacement with respect to the page (23) in question parallel to its base, but only (anti-) parallel to a single spatial direction, characterized by , that c) the device for the relative alignment of the book (22) with respect to the tablet (14;37) has two opposite narrow sides (13;33,34) which each abut an edge of the book (22), d) wherein a section through the device for the relative alignment of the book (22) with respect to the board (14;37) transverse to the permitted direction of movement is either closed in itself, i.e. doubly connected, namely in the manner of a cuff (10) with a rectangular profile, consisting of a front (11) and a back (12) which are connected to each other by the two narrow sides (13), or C-shaped, i.e. simply connected, namely in the manner of a slider (29) with a C-shaped cross-section, consisting of a front (32) and one upper and one lower horizontal web as narrow sides (33,34), to which one of two narrow guide tabs (35,36) is attached at the rear, which lie in a common plane and are directed towards each other, e) wherein a board (14;37) which is at least partially writable, readable and erasable for temporarily fixing an answer (16;41,42) is provided on the front (11,32) of the device for covering a task and / or solution field (4,5), which temporarily and / or partially covers the task and solution fields (4,5), f) wherein the tablet (14;37) together with the device for the relative alignment of the book (22) with respect to the tablet (14;37) is designed as a covering encompassing the book (22), g) wherein the extent of the cover perpendicular to the permitted direction of displacement, but parallel to the book (22) corresponds to the distance between two enclosed edges of the open book (22) ± 10 %, h) and wherein two narrow sides (13;33,34) of the cover each have the same width or depth, which corresponds to the thickness of the closed book (22). [2] Device according to claim 1, characterized by, that at least one information carrier (22) has two edges that are at least partially parallel to each other. [3] Device according to claim 1 or 2, characterized by , that on one sheet (23) of the information carrier (22) several task and solution fields (4,5) are arranged. [4] Device according to any one of the preceding claims, characterized by , that the task and solution fields (4,5) are always arranged alternately in a row that runs along the two parallel edges of the planar information carrier (22). [5] Device according to any one of the preceding claims, characterized by , that at least one tablet (14;37) is bordered at least partially by a straight edge. [6] Device according to any one of the preceding claims, characterized by, that the tablet (14;37) has approximately the same width and / or height (±10%) as the distance between two enclosed edges of an open information carrier (22). [7] Device according to any one of the preceding claims, characterized by , that the device for the relative alignment of the book (22) with respect to the tablet (14;37) is designed such that a free edge of the tablet (14;37) always remains approximately parallel to a given edge of a task or solution field (4,5) during any relative displacement of the same. [8] Device according to any one of the preceding claims, characterized by , that the device for the relative alignment of the book (22) with respect to the tablet (14;37) is made of a planar body. [9] Device according to any one of the preceding claims, characterized by, that the device for the relative alignment of the book (22) with respect to the tablet (14;37) is open at its end faces and therefore has the shape of a profile. [10] Device according to any one of the preceding claims, characterized by , that at least one tablet (14;37) is integrated or connected with the device for the relative alignment of the book (22) with respect to the tablet (14;37). [11] Device according to one of the preceding claims 45, characterized by , that the extent of the cover in the permitted displacement direction is smaller (+10%) than the length of the enclosed edges of the open book (22). [12] Device according to claim 11, characterized by , that the shell has a rectangular side surface into which the tablet (14;37) is integrated. [13] Device according to any one of claims 1 to 11, characterized by, that the device for the relative alignment of the book (22) with respect to the tablet (14;37) is closed at one end and therefore has the shape of a case. [14] Device according to claim 13, characterized by , that the device for the relative alignment of the book (22) with respect to the tablet (14;37) has a hinged lid. [15] Device according to claim 13 or 14, characterized by , that a flat side of the device for relative alignment of the book (22) with respect to the tablet (14;37), in particular a hinged cover, is transparent. [16] Device according to any one of claims 13 to 15, characterized by , that the device for the relative alignment of the book (22) with respect to the tablet (14;37) has a guide for the movable mounting of the tablet (14;37). [17] Device according to any one of the preceding claims, characterized by, that the tablet (14;37) has approximately the same area or a smaller area than the open book (22).

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