Problems with Line Graphs Year 5 Statistics Learning Video Clip

Problems with Line Graphs Learning Video Clip

Step 3: Problems with Line Graphs Year 5 Statistics Learning Video Clip

Sandy and Coral Shaw have been to the seaside. They look at the amount of seashell bracelets and necklaces they have sold, the profit they have made from this and Sandy’s heart rate as they walked on the beach.

More resources for Autumn Block 3 Step 3.

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Discussion points for teachers

1. Which day had the highest total of combined sales? What was the total?
Discuss how the question would relate to the two lines of data on the graph.
Sunday – accept 66 or 67.

2. What was the biggest difference in sales between the necklace and the bracelet? What was the difference?
Discuss how this is different to the first question and how to find the difference.
Wednesday – 15 more necklaces sold.

3. Why do you think the sales dropped during the week?
Discuss the context of the question - visitors during the weekend and week. Discuss that trends can be inferred from the data based on the context. This question is open-ended for the children to explore.
There were likely to be more visitors on a weekend than during the week, which might lead to more sales.

4. What do you think Sandy is doing for the first minute and a half?
Discuss the graph in context – average resting heart rate is 60 to 80 bpm so why would it be increasing?
Various answers, for example: Sandy has just got out of the car and started walking.

5. How long is Sandy exercising before reaching maximum heart rate?
Discuss the intervals of the axis and what the numbers represent using the axis titles.
3.5 minutes

6. Why do you think Coral and Sandy had to run?
Discuss their location and what might have happened to cause them to run. This question is open-ended for the children to explore.
The tide was coming in and they needed to be quick to pick up the shells and move away.

Optional discussions: Why doesn’t the heart rate start at zero? What would your heart rate look like in comparison to Sandy’s?

National Curriculum Objectives

Mathematics Year 5: (5S2) Solve comparison, sum and difference problems using information presented in a line graph

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