Middle school teaching tool
A tool, a technology of middle school, applied in the field of middle school teaching tools, can solve problems that affect students' learning effect and knowledge application, and cannot arouse students' interest in learning, so as to improve the ability of comprehensive application of knowledge, simple structure, and cultivate learning interest.
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Embodiment 1
[0011] Such as figure 1 As shown, a middle school teaching tool includes a concave lens 1, a bracket 2 and an iron crucible 3. The concave lens 1 is arranged at the lower end of the bracket 2, and the iron crucible 3 is arranged at the upper end of the bracket 2.
Embodiment 2
[0013] Such as figure 1 As shown, a middle school teaching tool includes a convex lens 1, a bracket 2 and a porcelain crucible 3, the convex lens 1 is arranged at the lower end of the bracket 2, and the porcelain crucible 3 is arranged at the upper end of the bracket 2.
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