| 摘要 |
A teaching mat includes a plurality of parts which are connected with each other and disposed on floor. A first hole is defined through a center of each part and a sound generating member is received in the first hole. At least one second hole is defined in each part and located beside a designation member engaged with the part. A circuit board is received in the at least one second hole and electrically connected to the sound generating member. A conductive spring piece is located in the at least one second hole and a gap is defined between the circuit board and a main body of the conductive spring piece such that when pushing a button engaged with the at least one second hole, the conductive spring piece is lowered to touch the circuit board to generate a specific sound from the sound generating member.
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