Books Read in My Classroom

Tuesday 11 November 2014

A Note About Math......

Dear Parents,

Please find attached a subtraction grid that shows you all the facts that your child knows so far this year. Subtraction can be a difficult concept for kids to understand. We have played some subtraction games and explored different strategies to help your child learn their basic subtraction facts.

We are now moving on to learn addition facts. We have been playing some online fact games, learning some new strategies but mostly I am hoping that the children will anchor their new learning onto the subtraction facts they already know.

We are starting with reviewing double facts. Below is a list of doubles that your child should know:
2+2                      10+10                    50+50
3+3                      11+11                     60+60
4+4                      12+12                    70+70
5+5                      15+15                    80+80
6+6                      20+20                   90+90
7+7                      25+25                   100+100
8+8                      30+30
9+9                      40+40
        
We will then move on to the Commutative Property. Another name that you may know if “Fact Families.”
Here is an example using the number 5,7 and 12.
5+7=12                           12-7=5
7+5=12                           12-5=7
This is a very powerful strategy. It links subtraction and addition together and it uses a flip of numbers to get the same answer.

I encourage families to play cards, math games or visit math websites to support your child’s learning.

Thank you,

Ms. L. Romeo J

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