Expressing numerical data in graphical form SC
Students often struggle with the fact that in science they tend to be coming at the problem of graphs from a different direction to the one they have experinced in mathematics. In mathematics we start from an equation and students are asked to draw the graph. In science more generally they are re-modelling real data and being asked to fit a curve to some real data and deduce its equation
“Guessing the Graph”
This problem “Guessing the Graph” comes from the STEM Nrich collection. It offers learners the experience of dealing with experimental data in a scientific way, challenging them to fit a curve to some real data and deduce its equation. The task offers a real-life context for manipulating quadratic graphs and considering transformations of graphs. The resource is interactive so make sure you check it on your system first. The links on the left hand side of the page link to additional guidance on the activity these include:
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Teachers guide which includes a description of why to use this problems and suggested strategies for how to use it in the classroom. Key questions and suggestions for support and challenge.
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Guidance on how to get stared
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Solutions many of which are sent in by students from schools using the resources.
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There are also links to activities you can use to prepare or extend this one.
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“Bio Graphs” this is another example from the STEM Nrich collection. It encourages students to get into the real meaning of graphical representation without getting confused by the algebraic calculations or focusing on computation without being able to see the bigger picture. It will also encourage the students to think about the various differences and similarities between growth processes in the sciences. It has all the additional resources described in “Guessing the Graph” above.