Provide hands-on activities for practice and mastery. Check for understanding of concepts and skills by using relevant standard materials, i.e. worksheets, text problems, workbooks, teacher prepared exercises, etc.

Matching exercises

Objective: To reinforce information given in the second quadrant activities. To give more practice to children in making shadows.

Activity:
a) Using worksheets with shadows and objects, children practice matching shadows to the correct object which makes them.
b) Using portable light sources, have the children trace their own hand shadows with a partner. Cut the shadows out and make a class collage. c) Using flashlights, have children explore how to make different types of shadows. Have them challenge each other to create certain shadows.

Assessment: Again, teacher observation is the best way to assess that children are in fact understanding how objects and lights interact to make shadows.