Note: Currently, this model works only for Windows users.

Use the model to explore when sunlight falls on different sides of a building. Also note whether the sunlight is perpendicular to the surface (most heating) or at an angle (less heating).

Use the button on the tool bar to zoom in and out if necessary. Use the shadow/shading button () to turn shadow/shading on and off to evaluate the effect of sunshine on the house.

Use information from the model to fill in the table in the workbook.

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