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Lesson Plan

10. Program a robot to turn on an angle (A)

teaches Common Core State Standards CCSS.Math.Content.4.MD.C.5a
teaches Common Core State Standards CCSS.Math.Content.4.G.A.1
teaches Common Core State Standards CCSS.Math.Content.4.MD.C.5b
teaches Common Core State Standards CCSS.Math.Practice.MP5
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Lesson objective: Apply knowledge of angle construction and measurement to a real-world problem.

This lesson provides an opportunity for students to apply their knowledge and understanding of angle measurement to a real-life situation. Students are asked to construct a triangular path that a robot will travel given a set of directions that include turning on a specific angle.

Key Concept students will use: 

  • Points, lines, line segments, and rays have specific properties that are maintained when combined to make geometric figures. One of these new figures, an angle, is a geometric figure that is created wherever two rays share a common endpoint.

  • An angle is measured in reference to two rays that intersect the center point of a circle. An angle that turns through 1/360th of a circle is called a one-degree angle.

  • An angle that turns through n one-degree angles is said to have a measure of n degrees.

Skills students will use:

  • Exploring standard units of length; (Grade 2, Unit 2)
  • Solving problems involving shapes; (Grade 3, Unit 13) 

Students engage in Mathematical Practice 5 (Use appropriate tools strategically) as they use a ruler, protractor, and other materials to construct angles. 

Key vocabulary: 

  • acute angle
  • angle
  • measure
  • obtuse angle
  • point
  • protractor
  • ray
  • right angle
  • vertex

Special materials needed:

  • AngLegs (optional)
  • protractor
  • ruler
Related content

Appears in

Angle measurement

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