Reflection: Adjustments to Practice Sectors of Circles - Section 1: Patterns with Sectors of Circles


Previously, I would dedicate a significant amount of class time to reviewing the area formulas for rectangles, parallelograms, and triangles.  Common Core requires us to shift our focus to volume and so rather than re-teach area, my strategy involves formatively assessing my students’ understanding of basic area formulas to ensure they have a strong foundation for developing their conceptual understanding of volume. 

  Jumping in without Reteaching
  Adjustments to Practice: Jumping in without Reteaching
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Sectors of Circles

Unit 10: Geometric Measurement and Dimension
Lesson 1 of 14

Objective: Students will be able to use proportional reasoning to solve problems about sector area and arc length.

Big Idea: In a group-worthy task, students use clues about sector area, arc length, and sector perimeter to solve their "dominos".

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2 teachers like this lesson
Math, Geometry, Measurement, modeling, Circle Area, sector area, radian measure, arclength, space, shapes
  55 minutes
sector sample resized
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