OpenSciEd Unit 6.1 · Lesson 05 · 5.A
Look for: Ideas from Lesson 2: The model represents how…
From Teacher Edition
Facilitation guidance from the lesson plan — what to notice in student thinking and how to respond while teaching.
Building towards
5.A Revise a model to explain the observable one-way mirror phenomenon caused by unobservable interactions between light, the people, and the one-way mirror, which reflects and transmits about the same amount of light.
What to look / listen for
Ideas from Lesson 2
The model represents how light travels from the light source in Room A and reflects off the music student.
Ideas from Lessons 3 and 4
About half of the light transmits through the one-way mirror and the other half reflects back to the student.
Ideas from Lesson 4
The structure of the one-way mirror is half-silvered, which allows about the half of light to reflect off the silvered structures and the other half to transmit through the transparent structures.
Ideas from Lessons 2, 3 and 4
Light rays enter both the student’s and the teacher’s eyes from objects that are seen.
What to do
Cue students to use their Progress Tracker and other resources from their science notebook or class consensus models to develop their individual model. If students struggle, help them break down the task into smaller components. Start with what happens when light leaves the light source and reaches the student. Next, have them model what happens when light reaches the one-way mirror. You can also have students turn and talk with a partner or small group prior to the individual modeling to help them generate ideas.