Reflection: Developing a Conceptual Understanding Formative assessment over Identities - Section 1: Method for Assessment


Until the last couple of years, I have required my students to memorize trig identities during this unit.  Then, I took the time to reflect on whether memorizing met my goals and my students. When they memorize, my students make flashcards and quiz each other. But, they were never able to use the ideas as deeply as they do with the reference sheet. Yes there are some ideas that have to be memorized but how we get our students to memorize the key ideas will make a difference in retention.

Since reducing the amount of memorization required, I have found that my students actually retain more of the concepts and skills that I want them to gain from the unit. At this point in my class, most students can recall the reciprocal identities, the quotient identity, and sin^2 x+cos^2 x=1 from memory.  Beyond that, students use their resource sheet. But, as they do the work, they are continuing to learn the material, even on the assessment.


  Why not memorize
  Developing a Conceptual Understanding: Why not memorize
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Formative assessment over Identities

Unit 9: Trigonometric Identities
Lesson 8 of 14

Objective: SWBAT use fundamental identities to verify identities.

Big Idea: Through a quiz students will demonstrate their ability to verify identities.

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Math, Trigonometric identities
  45 minutes
copy of test
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