- Introduce the different types of similarities (AA~, SAS~, and SSS~). Do this by having real-life examples of already measured objects and show the students how they are really similar.
- Introduce key term.
- Have students work in pairs or triads from their team and view . These are student-created works from ShowMe.com. Students may choose, or you may to choose for them. Have them discuss and generate three questions about reflections, then share and answer questions together. Collect any questions that can’t be answered for guide to teaching.
- Have teams define similarities in real world.
- Students practice generating pictures of objects that are similar and do this by mathematically showing they are so.
Tips and Tools
Use an online tool for vocabulary building such as . You can also have students download to a smart phone or tablet to discuss variations of reflection.
Use this on similarity from Curriki.
Use Khan Academy tutorial on similarity.
Highlight Mathematical Practice 3, Construct visible arguments and critique the reasoning of others.