Connect students directly to the concept in a personal way. Capture students' attention by initiating a group problem-solving activity before delivery of instruction. Begin with a situation that is familiar to students and builds on what they already know. Construct a learning experience that allows diverse and personal student responses. Facilitate the work of cooperative teams of students.

Children experiment with shadows.

Objective: To have the children experiment with light sources and discover their own observations about shadows.

Activity: Using a light source (film projector works best), allow the children to experiment making their own shadows. Allow for ample time for each child to be able to freely explore the light source as well as the results of their bodies interacting with the light source.

Assessment: Observe the children and their responses to use in next activity.