Key Idea: A model of something is similar to but not exactly like the thing being modeled.

Students are expected to know that:

  1. A model represents (brings to mind) one or more aspects of the thing being modeled.
  2. While a model represents one or more aspects of the thing being modeled, it does not represent all aspects of the thing being modeled.
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Frequency of selecting a misconception

Misconception
ID Number

Student Misconception

Grades
6–8

Grades
9–12

MOM003

A model should look like the object, event, or process it is modeling (with the possible exception that it can be smaller). Therefore, a diagram or graph could be considered a model only if it bore a physical resemblance to what is being represented (Grosslight et al., 1991; Penner et al., 1997; Treagust, et al. 2002; Schwartz & White, 2005).

See the Original Project

Frequency of selecting a misconception was calculated by dividing the total number of times a misconception was chosen by the number of times it could have been chosen, averaged over the number of students answering the questions within this particular idea.

No NGSS statements are associated with this idea.