Students learn about classifying angles by their measure.

Objectives

Upon completion of this lesson, students will:

have learned what determines whether an angle is acute, obtuse, or right

Standards Addressed:

Grade 6

Geometry

The student demonstrates conceptual understanding of similarity, congruence, symmetry, or transformations of shapes.

Grade 7

Geometry

The student demonstrates conceptual understanding of similarity, congruence, symmetry, or transformations of shapes.

Grade 8

Geometry

The student demonstrates conceptual understanding of similarity, congruence, symmetry, or transformations of shapes.

Fourth Grade

Geometry

Draw and identify lines and angles, and classify shapes by properties of their lines and angles.

Measurement and Data

Geometric measurement: understand concepts of angle and measure angles.

Seventh Grade

Geometry

Solve real-life and mathematical problems involving angle measure, area, surface area, and volume.

3rd Grade

Geometry

The student will demonstrate through the mathematical processes an understanding of the connection between the identification of basic attributes and the classification of two-dimensional shapes.

4th grade

Geometry

Standard 4-4: The student will demonstrate through the mathematical processes an understanding of the relationship between two- and three-dimensional shapes, the use of transformations to determine congruency, and the representation of location and movement within the first quadrant of a coordinate system.

Standard 4-4: The student will demonstrate through the mathematical processes an understanding of the relationship between two- and three-dimensional shapes, the use of transformations to determine congruency, and the representation of location and moveme

Measurement

Standard 4-5: The student will demonstrate through the mathematical processes an understanding of elapsed time; conversions within the U.S. Customary System; and accurate, efficient, and generalizable methods of determining area.

3rd Grade

Geometry

3.19 The student will identify and draw representations of line segments and angles, using a ruler or straightedge.

4th Grade

Geometry

4.15.a The student will identify and draw representations of points, lines, line segments, rays, and angles,
using a straightedge or ruler

5th Grade

Geometry

5.14 The student will classify angles and triangles as right, acute, or obtuse.

Measurement

5.13 The student will measure and draw right, acute, and obtuse angles and triangles, using appropriate tools.