Addition & Subtraction of Rational Numbers
15.2 Strategies for Adding Rational Numbers…257
15.3 Strategies for adding Mixed Fractions…263
15.4 Strategies for Subtracting Rational Numbers…268
15.5 Strategies for Subtracting Mixed Fractions…274
15.6 Practice Exercises for Chapter 15…281
In this chapter, you will be introduced to several different strategies for teaching addition and subtraction of rational numbers. The introduction of different strategies for addition and subtraction will help eliminate the notion that math is one dimensional and boring. If individuals are introduced to different strategies, they will feel as if they are in charge and able to make decisions for themselves as to how they wish to solve a problem. These strategies will also help eliminate some of the math anxiety developed by students that are unable to work a problem using the one particular strategy taught if only one strategy is taught.
Without a doubt, the strategies discussed in this chapter will have the biggest impact on changing the way you view mathematics. It will also change the way you add and subtract fractions and the strategies in which you teach addition and subtraction of fractions. Be ready to be amazed at how easy addition and subtraction of fractions can be.
All students need a strong foundation in addition and subtraction of rational numbers in order to be successful in later mathematics courses and in life.