Number & Operations for Teachers
Copyright David & Cynthia Thomas, 2009
Chapter/Section
Chapter Four: Fractions: Addition & Subtraction
4.5 Conclusion
Objective
To summarize in a concept card the main ideas presented in this chapter.
Conclusion
EXERCISE FORMAT:
¾ - ¼ = ?
FACT FAMILY:
¾ - ¼ = ½
¼ + ½ = ¾
¾ - ½ = ¼
½ + ¼ = ¾
CONCEPT MODEL:
WORD PROBLEM:
Heather has 3/4 of a pizza. She eats 1/4 of the pizza. How much pizza does Heather have left?
INVERSE WORD PROBLEM:
After eating 3/4 of a pizza., Heather has ½ of the pizza left over. How much pizza did Heather start with?
ALGORITHM:
PROPERTIES
Figure 4.14 Fraction Addition Concept Card
