are red or blue?” Write on the board: ½ + ¼ = 2/4 + ¼ = ¾ would I solve this “How one?” 1/8 + ¼ = Pupils contribute answers … about 1/10 + 1/5? Does anyone know “What how we might work that out?” might help you work this out? Pupils contribute answers “What picture How many pieces does my shape need to be cut into for me to work this out?” (Draw on board) do I show 1/5 on this “How picture?” do I show “How 1/10?” can I work out what 1/5 + 1/10 “How is?” Update picture: we add fractions we need to make “When sure that they both have the same denominator. In the last example, we wrote 1/5 as 2/10.” can we replace 1/5 with 2/10 without “Why changing our answer? Why are we allowed to do this?” else could we have written for 1/5 “What instead of 2/10?” would we work this “How one out?” Write: 2/9 + 3/18 we need to do “What do first?” fraction is equivalent to “What 2/9?”
are red or blue?” Write on the board: ½ + ¼ = 2/4 + ¼ = ¾ “How would I solve this one?” 1/8 + ¼ = … “What about 1/10 + 1/5? Does anyone know how we might work that out?” “What picture might help you work this out? How many pieces does my shape need to be cut into for me to work this out?” (Draw on board) “How do I show 1/5 on this picture?” “How do I show 1/10?” “How can I work out what 1/5 + 1/10 is?” Update picture: “When we add fractions we need to make sure that they both have the same denominator. In the last example, we wrote 1/5 as 2/10.” “Why can we replace 1/5 with 2/10 without changing our answer? Why are we allowed to do this?” “What else could we have written for 1/5 instead of 2/10?” “How would we work this one out?” Write: 2/9 + 3/18 “What do we need to do first?” “What fraction is equivalent to 2/9?” Pupils contribute answers Pupils contribute answers