A line graph is a graph where the points are connected by lines. It shows how something changes in value, usually over time.

A variable is something that changes and can also be measured.

The x-axis is the horizontal line on a graph which goes through zero.

The y-axis is the vertical line on a graph which goes through zero.

Interpret line graphs representing two variables in familiar contexts

Maths

In this unit pupils will interpret and construct pie charts and line graphs and use these to solve problems. They will read scales in graphing and measures contexts linking to fractions, angles, percentages and understanding proportional relationships In the future unit pupils will learn how to calculate the mean of a set of data and use the mean to make comparisons between two sets of information

In the prior unit pupils explained what percent meant and how to represent a percentage in different ways. They learned how to convert percentages to decimals and fractions and solved conversion problems. In this unit pupils will interpret and construct pie charts and line graphs. They will read scales  linked to fractions angles percentages and understanding proportional relationships.

Statistics

Look at the graph. How many times does Andeep stop on his journey? 

Jacob and Sofia meet at the park for a picnic. The graph shows their journey from start to end. Tick the statements that are true.

Sofia is doing a sponsored walk. The line graph shows the distance she travelled over the afternoon. What time did she set off? Give your answer using 24-hour time format.

Sofia is doing a sponsored walk. The line graph shows the distance she travelled over the afternoon. How many km had she covered by the end of the walk?  {{ }} km

Estimate at what time during the journey Sofia stopped for her first rest. 

Look at the graph. In which time period did Sofia travel the fastest?  

Jun spotted 40 birds over the week in his garden. 8 of them were blackbirds. What percentage of the birds seen are blackbirds? {{ }}%

What is the number halfway between 42 and 62?  {{}} is half way between 42 and 62 

Jun’s sweets have a mass of 75 grams. Sam’s sweets have a mass of 32 grams. How many more grams of sweets does Jun have? Jun has {{ }} more grams of sweets than Sam. 

Jun has two drinks. He has 432 millilitres of orange juice and 213 millilitres of blackcurrant. How much more orange juice than blackcurrant does Jun have? {{ }} ml

Jun and Sam have £2.84 altogether. Sam has 51 pence more than Jun. 

Jun and Sam have £2.75 altogether. Sam has 51 pence more than Jun. 

Jun and Sam have 51 pence altogether. Sam has £2.75 more than Jun. 

Jun and Sam want to buy some sweets. Jun has £1.12 and Sam has £1.63    How much money do they have in total and how much more money does Sam have than Jun? 

Starter Quiz