Addition & Subtraction Facts
5.2 Memorize Strategy for Teaching Addition Facts…77
5.3 Double/Near Double Strategy for Teaching Addition Facts…78
5.4 Ten Frame Strategy for Teaching Addition Facts…79
5.5 Learning Addition Facts in Other Number Base Systems…84
5.6 Strategies for Teaching Subtraction Facts…87
5.7 Using Fact Families and Reflexive Property to Solve for an Unknown…89
5.8 Learning Subtraction Facts in Other Number Base Systems…90
5.9 Practice Exercises for Chapter 5…93
Material covered in this chapter is usually taught in kindergarten, first grade, and second grade.
You will be introduced to three different strategies for learning basic addition facts and two different strategies for subtraction facts. You were more than likely taught the traditional memorize, plug, and chug strategy and if you are proficient in your addition and subtraction facts, the hardest part of this chapter will be letting go and giving the alternate strategies a chance.
This chapter will show how to use a conceptual/visual ten frame strategy to learn addition and subtraction facts. All students need a strong foundation in basic addition and subtraction facts in order to be successful in later mathematics courses and in life. A conceptual understanding of addition/subtraction facts will lead to a faster and higher success rate in students learning their basic addition/subtraction facts.
We need to understand that not all students think the same way and the strategy that worked for you in learning your addition and subtraction facts may not work for all students. To add a little intrigue, fun and challenge, this chapter also discusses applying the different strategies to learn addition and subtraction facts in other number base systems.
As a teacher of mathematics, you need to understand that not all students think the same way and the strategy that worked for you in learning your addition and subtraction facts may not work for all of your students. Therefore, you need to build a repertoire of teaching strategies and become familiar with different strategies for teaching basic addition and subtraction facts.
Do not assume that all students are capable of memorizing the basic addition and subtraction facts. Do not assume that students that are incapable of memorizing the basic addition and subtraction facts are just not putting enough time or effort into memorizing the facts.
Since you should be proficient in your addition and subtraction facts in base ten, this chapter will show you how these conceptual/visual strategies will enable you to learn addition and subtraction facts in other number bases. This will also give you an understanding as to how your students may feel about learning addition and subtraction facts in base ten.