| 摘要 |
PROBLEM TO BE SOLVED: To provide a teaching material for a power circuit, which urges a learner to an active operation also after having finished a study of assembly the power circuit, and continues to interest him/her in the circuit function. SOLUTION: This teaching material 10 is composed of a game action using device 20 for making use of game-like actions of a learner for AC generation, an electric power generation mode deriving device 30 for driving DC generation and other generating modes based on the AC generation, and a generating function recognition device 40 for letting the learner recognize the electricity generating function in each generating mode. The game action using device 20 consists of an inertia generation part 22 for inertially rotating a shaft 23 based on tension of a string 24, and Ac generator 21 synchronized with the inertia generation part 22 via the shaft 23. The generating function recognition device 40 consists of a lamp 41 turned on by either of AC and DC currents, and a DC integrated circuit 42 for sounding a speaker 43 by a direct current DC2.
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