Clayton St. John C of E Primary School

Growing together in God’s love

# Maths

Read and Interpret Line Graphs

Yesterday we learnt about line graphs: why they are used, how to read them and what information we can find out from them.

To begin, can you tell me what is missing from the line graph? Think about what information we need to know.

Today you are going to focus on reasoning and problem solving skills (some of you started yesterday) about the line graphs.

Let’s look an example together:

Which site is the warmest throughout the night?

To answer this we need to look at which site has the higher temperatures recorded through the night. The sheltered site line does not drop below the beach site line: at all the recorded times the sheltered site is plotted at a higher temperature than the beach site making it warmer.

They each need extra warm socks for any temperatures under 6˚C, and a hot water bottle each for any temperatures under 4˚C. What extra supplies will they need for each site?

Because you are asked about both sites, look at each line in turn. Let’s start with the sheltered site and check whether there any temperatures below 6˚C. If we look at the graph there are no temperatures below it so they won’t need any extra supplies.

Now look at the beach site – it does drop below 6˚C and 4˚C so extra supplies will be needed.

Below are your tasks for today. The sheets have been labelled with your group teacher so you know which to complete. I will upload the answers later for you to mark your work.

Miss Riley

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