Math letter
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1) The letter communicates how math education has changed, with a focus on building number sense over memorization of math facts. 2) It provides strategies for teaching addition at home, including doubles facts, doubles plus one, partners of ten, make a ten, count on, and using commutative properties. 3) Sample math fact problems are provided using the strategies to allow parents to practice with their children.
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Math letter
- 1. Dear Parents, Math education has changed, and we want to help you understand how your child is learning math in the classroom today. This letter is meant to communicate the importance of how students are learning math facts and to ensure that parents/families are well informed and participate in the mathematics learning experiences of the students. As you will see with the strategies listed below, learning the basic addition and subtraction math facts is more than memorizing, it is building number sense. As you work on math facts at home consider these strategies as they will extend beyond the fact range to assist in everyday mental computation. Addition: 1. Doubles Facts: 1+1=2, 2+2=4, 3+3=6 etc. 2. Doubles + one strategy: This strategy is used when numbers are next to each other on the number line (neighbor numbers). The steps include: 1. Find the smaller number. 2. Double the smaller number 3. Then add 1. Example: 5+4=4+4+1=9 or 4+4=8 then add 1=9 3. Partners of 10: Being fluent in all the facts that equal 10 will make adding larger numbers easier. Example: 2+8, 3+7, 4+6, etc. 4. Make a Ten: Use this strategy to solve problems with larger addends (8+5=). 8 10 + 3 = Mental Math Steps: 1. Think about 8+__=10. 2. Take the 2 and add it to 8 to make a 10. 3. Then think about the 5-2=3. 4. Then add 10+3=13 Another way to look at it: 8+5= 8+2+3=13. Since you know that 8+2 is 10, you can take 2 out of 5 and give it to 8. Then add 10+3=13.
- 2. 5. Count on: Use this strategy only when adding 1, 2, and 3 to a number. Steps: 1. Say the larger number. 2. Count up the smaller number Example: 5+2= say 5, then say 6,7. 6. Commutative Property or Turn Around Facts: Use facts you know to solve commutative facts. Example: 5+3=8 then 3+5=8 Practice some of the Strategies below! 8 5 7 3 6 1 0 4 +2 +4 +3 +2 +5 +4 +6 +3 9 4 7 3 4 5 9 3 +7 +4 +1 +5 +8 +1 +6 + 7 8 3 2 3 9 4 6 8 +7 +4 +3 +4 +8 +8 +6 +2 7 2 9 2 5 5 9 3 +7 +2 +1 +5 +8 +5 +9 + 3