Mathematical function curve demonstration device
A technology of mathematical functions and demonstration devices, applied in the field of teaching instruments, can solve problems such as difficulty in drawing, inaccurate graphics, affecting teaching effects, etc., and achieve the effects of improving comfort, accurate positioning, and ensuring effects
Inactive Publication Date: 2018-02-16
李沛东
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Problems solved by technology
This operation method is difficult to draw, and the drawn graphics are not very accurate, which affects the teaching effect
Method used
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[0013] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0014] see Figure 1-2 , the present invention provides a technical solution: a demonstration device of a mathematical function curve, including a base plate 1, the middle position of the upper surface of the base plate 1 is fixedly connected with the lower end of the electric telescopic rod 3, and the upper end of the electric telescopic rod 3 is connected with the support plate 16. The middle position of the lower surface is fixedly connected, the upper surf...
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The invention discloses a mathematical function curve demonstration device comprising a bottom plate. The middle part of the upper surface of the bottom plate is fixedly connected with a lower end ofan electric expansion link; and the upper end of the electric expansion link is fixedly connected with a middle part of a lower surface of a support plate. A placing slot is formed in the upper surface of the support plate; a paper board for drawing a complete function curve is placed in the placing slot; the upper surface of the support plate and the lower surface of a transparent plate are fixedly connected; and two guide rails are fixed at the front end and the rear end of the upper surface of the transparent plate symmetrically. Therefore, a teacher not only is able to carry out explanation while carrying out drawing but is also able to demonstrate a curve drawing process vividly, thereby ensuring the teaching effect. The teacher adjusts the height of the support plate by the electricexpansion link, so that the comfortable level of using the mathematical function curve demonstration device by the teacher is improved; and because an oily pen is placed in a fixed hole and a U-shapedrack and a moving plate can move left and right and back and forth, the oily pen in the fixed hole can be localized precisely.
Description
technical field [0001] The invention relates to the technical field of teaching instruments, in particular to a demonstration device for mathematical function curves. Background technique [0002] In function teaching, teachers draw and explain function curves by hand, so that students can fully understand the principle of functions. This mode of operation is very difficult to draw, and the drawn graphics are not very accurate, which affects the teaching effect. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a demonstration device for mathematical function curves. The teacher can explain while drawing, and can vividly demonstrate the drawing process of the curve to ensure the effect of teaching; The rod adjusts the height of the support plate to improve the comfort of the teacher when using the mathematical function curve demonstration device; the oil-based pen is placed in the...
Claims
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Login to View More IPC IPC(8): G09B23/02
CPCG09B23/02
Inventor 李沛东
Owner 李沛东