INSTRUCTIONAL MATERIALS FOR SCHOOL DISTRICTS, HOME SCHOOLERS and PARENTS — NEW for FALL 2026!

A SEASONALITY WORKBOOK: TRACKING CHANGES IN SUN ANGLE OVER THE YEAR COMBINED WITH NATURE JOURNALLING.

Photo: Harrison, Michigan. Fall 2023. Copyright ©Amy Lilienfeld/Circle of Illumination Science Education 2023.

Seasonality is a familiar phenomenon associated with our climate. But how many of us really understand what causes it?

Although a lot of attention has been given to changes that occur over the year in day length a second factor is just as important: changes in the height of the sun over the horizon at mid-day. This is referred to as “sun angle”.

With the use of this workbook students will learn how to calculate sun angle at noon on any given day of the year and then track how it changes over the course of an entire year. This new knowledge will not only help them understand this important factor behind our own seasonality but it can then be used to calculate sun angle at other places on Earth to provide insights into world climates.

In addition students will be required to record observations and questions about daily weather.

THIS IS A NEW PRODUCT UNDER DEVELOPMENT THAT WILL BE AVAILABLE BY THE END OF OCTOBER. PRICE INFO WILL BE POSTED AT THAT TIME.