• How long has the mental calculation with abacus been promoted in this kindergarten?

    心算我们这个幼儿园已经开展多久了?

    youdao

  • Objective To observe the influence of abacus mental calculation training on children cognition ability.

    目的观察心算训练儿童认知能力影响

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  • Objective To observe the influence of abacus mental calculation training on children cognition ability.

    目的观察心算训练儿童认知能力影响

    youdao

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