Reflection: Modeling Light Reflection - Section 2: Explore, Explain, and Elaborate

 

This lesson has the potential to be great, unfortunately for my students, I think my light sources and mirrors need some adjustments.  I am not 100% positive, but I think the mirrors I had my students use for this experiment were flawed.  They were not shiny mirrors like the kind we're used to using to look at ourselves each day. They were much duller than than, more like the non shiny side of aluminum foil.  I think this made it difficult for my students to see the path of the light. When I was helping groups of students and holding the light "just right" we were able to see and trace the path. This made it difficult for students to remain on task because they simply weren't seeing the path of light. 

One way I thought I would be able to combat this difficulty was to allow students to work in groups.  I have found that when students work in groups, the group members often keep each other safe and on task.  Often times group members are aware that with a short amount of time to get through an investigation, they must remain on task to get through the investigation.  In my classroom students often work in groups or with partners. This is one way I ensure that students work appropriately with hands on materials. 

Many students also traced shadow shapes rather than the path the light took once it was reflected.  Students also had a difficult time tracing the initial path of light into the mirror.  This also made the ability to see the angles challenging. Again, I had to circulate around the room quickly in order to help students and clear up misunderstandings as they were occurring.  

To do this lesson again, I would demonstrate whole class first before letting students explore on their own. I generally like students to explore first, but in this case, they would have benefited from seeing me do it first. 

  Distracted by Shadows
  Modeling: Distracted by Shadows
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Light Reflection

Unit 3: Waves
Lesson 7 of 11

Objective: SWBAT define light reflection and identify similarities between refraction and reflection.

Big Idea: In this hands on lesson trace a path of light to investigate what reflection is.

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3 teachers like this lesson
Subject(s):
Science, Waves, Light, refraction (Light), sound waves, light wave, reflection, beaker, rainbows, weater
  75 minutes
light reflection
 
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