Original Project
Models
Models are useful for thinking about real-world objects, events, and processes.
Item MO028002: A chemist could use a model to show other people what DNA looks like or to help him/herself think about DNA.
Why might a chemist decide to make a model of a DNA molecule?
- To show other people what DNA looks like, and to help herself think about DNA
- To show other people what DNA looks like, but not to help herself think about DNA
- To help herself think about DNA, but not to show other people what DNA looks like
- Neither to show other people what DNA looks like nor to help herself think about DNA
- Distribution of Responses
- Students Responding Correctly
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 1163 | 1523 | 76% |
| Grades | |||
| 6–8 | 703 | 940 | 75% |
| 9–12 | 460 | 583 | 79% |
| Gender | |||
| Male | 522 | 736 | 71% |
| Female | 622 | 763 | 82% |
| Primary Language | |||
| English | 1042 | 1341 | 78% |
| Other | 100 | 148 | 68% |