Shadows - Lesson Plan

The lesson plan from The Primary Science Advisory Service Ltd explores the intriguing world of shadows, tailored for primary school students. It aligns with the National Curriculum and delves into scientific skills such as observing over time, pattern seeking, and fair testing. Students will learn that shadows are created when light from a source like the Sun is obstructed by an opaque object, and they will investigate how the size of shadows can change. The lesson builds on previous knowledge from Year 1, where students observed seasonal changes, and connects to Year 5 and 6 topics on light and materials. Health and safety considerations are highlighted, ensuring that torches are not directed at faces and that all materials used are safe and intact.

The lesson includes a variety of hands-on activities, such as experimenting with different materials to see which cast shadows and exploring how the shape and size of shadows are affected by the position of the light source. Misconceptions are addressed, for example, clarifying that shadows are not reflections and that even transparent objects can cast shadows. The lesson is enriched with cross-curricular links to history, English, and maths, and mentions influential scientists such as Isaac Newton and Albert Einstein. For optimal results, the lesson advises darkening the classroom for indoor activities and using a sunny day for outdoor experiments. It concludes with a plenary session where students reflect on what they have learned about shadows, opaque objects, and the conditions that affect shadow size.