Prior knowledge.

• Work with fraction strips

Background

In different resource books working with fractions is placed at different stages. Problems with like denominators are certainly at a lot lower level than stage 8. Book 8 would suggest stage 5, but since students at that stage have just learned part whole strategies and are only dealing with small numbers for this, it seems harsh to suddenly "change the rules of addition" for them. Working on symbols like this thus seems to logically fit at stage 6.

Comments on the Exercises

Exercise 1
Asks students to solve problems involving the addition and subtraction of fractions with the same denominator.

Exercise 2
Asks students to solve word problems involving the addition and subtraction of fractions with the same denominator.