模擬算盤

模擬真實的算盤，讓學生計算加法和減法。
老師可於課堂上與學生進行活動，或供學生自學。

Keywords: eph, 教育出版社, 小學數學新思維, 模擬算盤 Simulate real abacus, let the students calculate additions and subtractions.
Teachers can carry out activities with students in the classroom or for self-learning.

Keywords: eph, Education Press, elementary school mathematics new thinking, simulation calculations