Engage
• Make observations about what you see
at the front of the classroom.
Explore each item in your tub and answer
the following questions.
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Can you see an image of the playing card on the object?
Can you see the playing card through this object?
If you can see the card through this object, is the image changed?
Can you use this object to make the face of the playing card visible
even when it faces away from you?
Explore each item in your tub and answer
the following questions.
• In your group, devise your own system for
classifying the objects based on how they
interacted with images.
• Did the objects in each group share any
properties?
EXPLAIN
What were the key points
you learned through your
exploration?
Key Points (Explanation):
• What properties were similar among
objects in the same group?
• Light travels in straight lines unless it
encounters a different material.
• Light can bounce off some substances.
(reflection)
• Light can bend when it passes through
some substances. (refraction)
Evaluation
Create a concept map of reflection and
refraction.