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Take Time for Action
Take Time for Action: Students' Geometric Thinking about Rotations and Benchmark Angles

Melfried Olson, Fay Zenigami, Claire Okazaki 

August 2008, Volume 14, Issue 1, Page 24


Describes rotating a ray around its endpoint to introduce the idea of benchmark angles as well as clockwise vs. counterclockwise movements. Teachers are invited to "take time for action" and investigate students' thinking on this task.

Take Time for Action promotes the idea of 'Action Research' by teachers in their middle level classrooms and to disseminate ideas appropriate for middle level students used by teacher educators with pre-service teachers. Submissions by classroom teachers include representative problems, activities, or tasks used in their studies and to reflect on the student thinking, problem solving strategies, mathematics pedagogy, etc. that those tasks elicit. Take Time for Action is a regular department of Mathematics Teaching in the Middle School.

Grade 5
Conceptual Development
Grades 6-8
Lesson Plans
Student Work
Reasoning and Proof