The key questions of the lesson are “What is the pattern of the sun’s tracks?” and “How do the sun’s tracks compare from season to season?” Students measure the angle of the sun at different times of the day using a protractor tool constructed from a provided pattern. The tool allows students to measure the angle without looking directly at the sun. They represent the angles measured on a line graph which is provided in the lesson materials. Students also make comparisons of the angles of the sun at different times on different days throughout the year. In the first part of the Extension section, the activity also asks students to compare the angle of the sun to the lengths of shadows created with a gnomon (or use a sundial). A graph sheet is provided for the representation of shadow lengths. The background information of this activity discusses Earth’s tilt in its orbit around the sun as a cause for the pattern of sun angle throughout the year. It also links angle of the sun to directness of light and heat energy generated as a result. These parts are more appropriate for middle school. The 5th grade teacher can use this activity to emphasize the daily pattern of the sun’s angle as the cause of the daily change in length of shadows. If data is collected over the course of the year, the yearly patterns observed can be discussed as well.