| http://www.w3.org/ns/prov#value | - istics of the image formed by a plane mirror and to do an activity with the worksheet about Focal Length.?? Guide the groups in their activity.?? Evaluate the students' achievement by asking one or two groups to present their work.?? Give them rewards and feedback.Closing: (20 minutes)?? Give students examples of doing some exercises and solving some problems Summarize the concepts Give some ho
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