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PLEASE READ - This lesson requires ActivInspire Software to open. Be sure that you have the software ActivInspire to open this file type before downloading or purchasing. Use your Activ Board to have students compare and contrast two types of optical telescopes. Students can write in and draw similarities and differences between refracting and reflecting telescopes. An answer page is included.

PLEASE READ - This lesson requires ActivInspire Software to open. Be sure that you have the software ActivInspire to open this file type before downloading or purchasing. Here is a good review of mass versus weight. I like to display this as the problem of the day for students to work on as they enter classroom. When students get to work when they enter the classroom, you can check homework, or use the time to talk to a student or pass back papers. Students fill in the chart identifying the