Lesson 3 | Shapes and Angles | 4th Grade Mathematics

Objective

Identify and draw perpendicular lines.

Lesson Map

Topic A: Lines and Angles

Lesson

Identify and draw points, lines, line segments, rays, and angles.

Standards

4.G.A.14.MD.C.5

Lesson

Identify and draw right, obtuse, and acute angles.

Standards

4.G.A.1

Lesson

Identify and draw perpendicular lines.

Standards

4.G.A.1

Lesson

Identify and draw parallel lines.

Standards

4.G.A.1

Topic B: Measures of Angles

Lesson

Use iteration with one physical nonstandard unit to measure benchmark angles.

Standards

4.MD.C.54.MD.C.6

Lesson

Understand that an angle that turns through $${{1\over360}}$$ of a circle is called a “one-degree angle” and can be used to measure angles. Use a makeshift protractor to measure benchmark angles.

Standards

4.MD.C.54.MD.C.6

Lesson

Measure angles that are less than 180° using a 180° protractor. Distinguish angle measure from other attributes.

Standards

4.MD.C.54.MD.C.6

Lesson

Sketch angles of specified measure using a 180° protractor.

Standards

4.MD.C.54.MD.C.6

Lesson

Identify and measure angles as turns and recognize them in various contexts.

Standards

4.MD.C.54.MD.C.6

Topic C: Measures of Adjacent Angles

Lesson

Decompose angles using pattern blocks.

Standards

4.MD.C.7

Lesson

Solve problems involving the measure of two adjacent angles.

Standards

4.MD.C.7

Lesson

Solve problems involving the measure of more than two adjacent angles.

Standards

4.MD.C.7

Lesson

Measure and sketch angles that are greater than 180°.

Standards

4.MD.C.54.MD.C.64.MD.C.7

Topic D: Shapes and Lines of Symmetry

Lesson

Analyze and classify triangles based on side length, angle measure, or both.

Standards

4.G.A.14.G.A.2

Lesson

Draw triangles from given criteria.

Standards

4.G.A.14.G.A.2

Lesson

Analyze and classify quadrilaterals based on parallel and perpendicular lines and the presence or absence of angles of a specified size.

Standards

4.G.A.14.G.A.2

Lesson

Draw quadrilaterals from given criteria.

Standards

4.G.A.14.G.A.2

Lesson

Identify and draw lines of symmetry in two-dimensional figures.

Standards

4.G.A.3

Shapes and Angles

Objective

Lesson Map

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Shapes and Angles

Objective

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