Developing and Using Models

by Carolina Staff

Models represent reality. Students may think of a model as a physical object, but a scientific model can be a formula, a Punnett square, a labeled diagram, or computer simulation. A good model is explanatory and predictive. Models are based on observations or data. 

Students should be able to apply a model to a novel situation and ascertain whether the data they obtain is confirmatory. For example, students should be able to apply a Punnett square model in genetics to identify parent genotypes and phenotypes. The reverse is also important. Students should be able to collect data and generate a model. For example, students can collect data for distance traveled over time, graph it, and develop the formula for speed.

Use this scientific model checklist to guide students through constructing and refining a scientific model. They can use the checklist to ensure a model is sound every time they complete a scientific investigation.

What makes a good scientific model?

A good model is:

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