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# Key Stage 3 – Trees for Net Zero (Extended Resource)

Resource produced in collaboration with MEI

Brief overview of session ‘logic’

• Why trees are good
• People are planting trees – estimates around what the numbers look like in terms of land use
• Some companies encourage you to offset flights by planting trees – how many trees for one flight?
• How much carbon do trees capture and store?
• How does the amount of carbon captured and stored by a tree change during its lifecycle?
• What happens to that carbon when a tree dies?
• Can you plant a tree to offset a flight?
• What is Net Zero?

Mathematical opportunities offered

• Estimation and proportional reasoning
• Developing a sense of scale of large numbers
• Interpretation of data, statistics, graphs, infographics in context
• Critiquing graphs
• Analysing and comparing data in order to develop and present a conclusion
• Making assumptions
• Making predictions

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