Back-of-the-Envelope Calculations: National Debt

Discipline:

This brief activity acquaints students with rough estimation through problem solving and discussion. This task works especially well as a warm-up in the first meeting of a small class. Though the task is written around the case of national debt, a list of alternative cases is provided.

HR Diagrams

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Resource type:

M55 globular cluster.

This assignment requires students to read and interpret Hertzsprung-Russell (HR) diagrams, showing the correlation between a star's temperature and its luminosity. Students will also gain experience with estimating the magnitude of error, identifying sources of error, identifying the limitations of particular methods of measurement, and interpreting logarithmic scales.

HR Diagrams

Discipline:
Resource type:

Hertzsprung-Russell diagram.

This assignment requires students to read and interpret Hertzsprung-Russell (HR) diagrams, showing the correlation between a star's temperature and its luminosity. Students will also gain experience with estimating the magnitude of error, identifying sources of error, identifying the limitations of particular methods of measurement, and interpreting logarithmic scales.