• 1. Abacus mental calculation: 珠心算
• 2. Keywords Abacus mental calculation: 正确率
• 3. training for abacus mental calculation: 珠心算训练

更多释义

• 1.Objective To observe the influence of abacus mental calculation training on children cognition ability.
  目的观察珠心算训练对儿童认知能力的影响。
  dict.yoduao.com
• 2.How long has the mental calculation with abacus been promoted in this kindergarten?
  珠心算在我们这个幼儿园已经开展多久了？
  dict.yoduao.com

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