标签:笨死 - 澳大利亚华人论坛

英语学习

谁能给翻译一下这段,是在弄不懂了,笨

Conservation of Weight, Length and Number An important cognitive task that is critical to mathematics development is the ability to understand that weight, length and number remain constant despite changes in appearance. This ability to cons...澳洲华人论坛