Saturday, June 30, 2012
How to Teach a Primary One Subtraction
I use Kumon's method of backcounting to teach a Primary One subtraction. Example 17 - 5, I will tell the student to start with 17 and backcounts from 1 to 5 by narrating 16, 15, 14, 13 and 12, with 12 being the answer. Another method is forward counting, for example 9 -4, I will ask the student to start counting from 4, by narrating 5, 6, 7, 8, until 9, then count how many fingers he use, and that will be the answer ie. 5. I find that it is very challenging to teach lower primary students, as there are many things which they don't know, so the simpler it is, the more difficult to teach, what do you think?