Why do shadows look different in the summer than in the winter? What causes day and night? How can a sundial be used to tell time? Answer these questions and more through two engaging lessons about light and shadows. Fourth and fifth...

Time to learn about sundials. Scholars see how to build sundials after learning about Earth's rotation and its relation to time. The unit describes several different types of possible sundials, so choose the one that fits your needs — or...

Students take measurements throughout the day using a simple sundial called a gnomon. They record the results on a Data Log and convert from English units to metric (S.I.) units. Data points are plotted on the same graph and analyzed.

Why is that shadow getting longer? Determine the changes in the length of a shadow as the sun changes position in the sky. Individuals use an interactive to calculate the length of a shadow at different times during the day via the...

Students make a sundial. In this time lesson, students determine the time of the day by creating a sundial. They check the time on the sundial, hourly, for one week. Afterward, they explore what happened to the shadows in reference to...

Students explore the solar system by conducting Earth science experiments. In this Sun lesson, students identify the different seasons on Earth and discuss their purpose and cause. Students create a sundial and observe the changes to...

Fourth graders discover time keeping by analyzing technological advances in history.  In this time lesson, 4th graders create and complete a KWL chart based on their research of a famous timekeeping invention, such as a sundial....

Students analyze the Mayan calendar and define its meaning. In this algebra lesson, students explain what the Mayan calendar means and how it works. They define the symbols and recreate a simplified version of the Mayan calendar.

Students place a pencil perpendicular to the ground and trace its shadow between 11:30 AM and 12:30 PM. They measure the length of the shadow, periodically over several hours, in either English or Metric units. Using the data, they find...

Does it ever seem like time is slipping through your fingers? Model the passing of time with an hourglass activity in which individuals determine whether hourglasses are the most efficient way to measure time.

Second graders observe and demonstrate how to tell and write time. They discuss different ways and things that tell time, then listen to a teacher-led lecture about the hands on a clock. Students complete a worksheet along with the...