Last Updated:2022/12/24

4) The Psychology Research Institute of the China Academy of Sciences carried out an experiment in teaching arithmetic in coordination with algebra in two classes of the fifth grade in the No. 2 experimental elementary school in Peking with good results. At a unified examination in arithmetic held among all elementary schools in Hsicheng ch’ü, Peking, the grades of the students in these two classes averaged better that 94.

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