Drawing bar models to represent word problems

Maths

Measures

Addy and Melvin collected wastewater, measuring them each month. In April they collected 1 litre and 500 ml and in May they collected another 7 litre and 500 ml. What was the weight of the cans they collected altogether?

Buttons and Addy compared how much water they drank in a day. Addy drank 7 litres and 500 ml. Buttons drank 1 litre and 500 ml less. How much water did Buttons drink?

Mr Slade treated his class to some juice for playing nicely in the hot weather. He used 1 litre and 500 ml of squash. With the right amount of water, it made 7 litres and 500 ml of juice. How much water was in the juice?

Can be a representation of a word problem that helps to identify the calculation needed to solve it.

Help show the relationship between the known and unknown values in a problem.

Help to identify if there is a comparison between two or more values or if there are part-whole relationships or scaling relationships between values.

Known values: 89g and 35g. Unknown: The known values added together. (89g + 35g)

Known values: 89kg and 35kg. Unknown: The difference between the known values. (89g - 35g)]

Match the word problem to the correct bar model.

Match the word problem to the correct bar model

Drawing bar models to represent word problems

Lesson outcome