Free 7th Grade Regular Polygon Angle Measurements Lesson Plan (Math)

Topic: Regular Polygon Angle Measurements

Objectives & Outcomes

• Students will be able to measure the interior angles of a regular polygon and use the information to calculate its total number of angles and sides.

Materials

• Regular polygons (e.g. triangle, square, pentagon, hexagon)
• Rulers or other measuring instruments
• Calculators (optional)

Warm-up

• Have students draw a regular polygon on a piece of paper and label the sides A,B,C,D, etc.
• Have students measure the lengths of the sides using rulers or other measuring instruments.
• Have students calculate the total number of sides by adding the number of sides on each side of the polygon.

Direct Instruction

• Introduce the concept of regular polygons and the different types of regular polygons (triangle, square, pentagon, hexagon, etc.)
• Discuss how to measure the angle of a regular polygon using the angle measure tool on a protractor.
• Show students how to use a protractor to measure the angle of each side of the regular polygon they drew earlier.
• Have students record the angle measurements on their worksheets.

Guided Practice

• Have students work in pairs to measure the angle of another regular polygon.
• Have them compare their measurements to check for accuracy.

Independent Practice

• Have students draw a regular polygon and measure the angle using a protractor.
• Have them record their measurements and graph the results.
• Have them analyze their results and draw conclusions about the accuracy of the measurement method.

Closure

• Review the steps for measuring an angle with a protractor.
• Ask students to share their findings and discuss any surprises or unexpected results.Evaluation
• Have students explain the reason for any discrepancies in their results.
• Ask them to summarize what they have learned about measuring angles with a protractor.Attention Getters
• Begin the class by asking students to share their favorite regular polygon and to explain why they like it.Brainstorming Ideas
• Ask students to list as many regular polygons as they can and to explain what makes them regular.Independent Practice
• Have students draw a regular polygon and measure the angle using a protractor.Closure
• Review the steps for measuring an angle with a protractor.Evaluation
• Have students explain the reason for any discrepancies in their results.Attention Getters
• Ask students to share their favorite regular polygon and to explain why they like it.Brainstorming Ideas
• Ask students to list as many regular polygons as they can and to explain what makes them regular.Independent Practice
• Have students draw a regular polygon and measure the angle using a protractor.Closure
• Review the steps for measuring an angle with a protractor.Evaluation
• Have students explain the reason for any discrepancies in their results.Attention Getters
• Ask students to share their favorite regular polygon and to explain why they like it.Brainstorming Ideas
• Ask students to list as many regular polygons as they can and to explain what makes them regular.Independent Practice
• Have students draw a regular polygon and measure the angle using a protractor.Closure
• Review the steps for measuring an angle with a protractor.Evaluation
• Have students explain the reason for any discrepancies in their results.Attention Getters
• Ask students to share their favorite regular polygon and to explain why they like it.Brainstorming Ideas
• Ask students to list as many regular polygons as they can and to explain what makes them regular.Independent Practice
• Have students draw a regular polygon and measure the angle using a protractor.Closure
• Review the steps for measuring an angle with a protractor.Evaluation
• Have students explain the reason for any discrepancies in their results.Attention Getters
• Ask students to share their favorite regular polygon and to explain why they like it.Brainstorming Ideas
• Ask students to list as many regular polygons as they can and to explain what makes them regular.Independent Practice
• Have students draw a regular polygon and measure the angle using a protractor.Closure
• Review

Evaluation

• Have students explain the reason for any discrepancies in their results.Attention Getters
• Ask students to share their favorite regular polygon and to explain why they like it.Brainstorming Ideas
• Ask students to list as many regular polygons as they can and to explain what makes them regular.Independent Practice
• Have students draw a regular polygon and measure the angle using a protractor.Closure
• Review the steps for measuring an angle with a protractor.Evaluation
• Have students explain the reason for any discrepancies in their results.Attention Getters
• Ask students to share their favorite regular polygon and to explain why they like it.Brainstorming Ideas
• Ask students to list as many regular polygons as they can and to explain what makes them regular.Independent Practice
• Have students draw a regular polygon and measure the angle using a protractor.Closure
• Review the steps for measuring an angle with a protractor.Evaluation
• Have students explain the reason for any discrepancies in their results.Attention Getters
• Ask students to share their favorite regular polygon and to explain why they like it.Brainstorming Ideas
• Ask students to list as many regular polygons as they can and to explain what makes them regular.Independent Practice
• Have students draw a regular polygon and measure the angle using a protractor.Closure
• Review the steps for measuring an angle with a protractor.Evaluation
• Have students explain the reason for any discrepancies in their results.Attention Getters
• Ask students to share their favorite regular polygon and to explain why they like it.Brainstorming Ideas
• Ask students to list as many regular polygons as they can and to explain what makes them regular.Independent Practice
• Have students draw a regular polygon and measure the angle using a protractor.Closure
• Review
• Evaluation
• Have students explain the reason for any discrepancies in their results.Attention Getters
• Ask students to share their favorite regular polygon and to explain why they like it.Brainstorming Ideas
• Ask students to list as many regular polygons as they can and to explain what makes them regular.Independent Practice
• Have students draw a regular polygon and measure the angle using a protractor.Closure
• Review the steps for measuring an angle with a protractor.Evaluation
• Have students explain the reason for any discrepancies in their results.Attention Getters
• Ask students to share their favorite regular polygon and to explain why they like it.Brainstorming Ideas
• Ask students to list