To represent something means to show something in a different way.

Use written strategies and known facts to calculate the value of a missing part

Maths

In this unit pupils will identify structures within stories. They will use their knowledge of structures to create stories and use their knowledge of additive structures to solve problems. In the future it pupils will use the concept of 'same sum' to simplify and solve addition problems.

In the prior unit pupils used the most efficient and reliable strategy to find the change. In this unit pupils will  identify structures within stories and use their knowledge of structures to create stories and use their knowledge of additive structures to solve problems.

Use knowledge of part-part-whole structure to solve additive problems

Cost of holiday = flight + hotel + leisure time + food

Cost of holiday = Flight − hotel − leisure time − food

Food = Cost of holiday − hotel − leisure time − flight

flight + hotel + food + ? = cost of holiday		

Cost of holiday − flight − hotel − food = ?

Match the structure to the parts of the bar model.

Calculate the amount that was spent on leisure time for this holiday, which is shown by the question mark in the bar model. Leisure time = £{{ }}

Which equations correctly represent the bar model?

Calculate the amount of Max Cola sales using the bar models. Max Cola = £{{ }} m

Oak United and Oak Rovers are playing in the Cup Final at Wembley Stadium.  How many supporters were cheering for Oak Rovers? {{ }}

Which equation represents this bar model made of number rods?

Alex was training for a swimming race. On Monday he swam 1.1 km. On Wednesday he swam 1,250 m and on Friday he swam 1.2 km. How far did he swim? Give your answer in metres. {{ }} m

Which equations represent this problem? Jun is making a fruit drink. He has 1.35 l altogether. He has 0.65 l of orange juice and 225 ml of pineapple juice. The rest is water. How much water is needed?

0.3 + 0.1 + 0.6 = 1    Which other combination of three parts has the same whole?

Complete the column subtraction to find the difference.

What digit is missing from this incomplete column addition?

This lesson will soon be taken down.

Use written strategies and known facts to calculate the value of a missing part

Lesson outcome