Learning About Subtraction
This lesson introduces the concept of subtraction. The reading is designed to be used by the children themselves, but at this level the teacher may wish to use it as a shared reading activity.
• to show that subtraction means taking objects away from the original set;
to reinforce the meaning of the subtraction sign;
to require the children to demonstrate their understanding by successfully completing subtraction exercises.
Today we are going to talk about subtraction. Subtraction just means taking away. Here is the subtraction sign: -. Now look at all the bunnies in the hutch: Can you count them? Yes, there are nine. Let?s write that down: 9
Now we are going to take some bunnies out of the hatch. Let?s take away 4.