# Ch 18: 3rd Grade Math: Introduction to Geometric Figures

The short video lessons in this Introduction to Geometric Figures chapter are designed to help your 3rd grade students understand the different methods for working with rays, line segments, angles and geometric constructions. A chapter examination assesses your students' knowledge of geometric figures, constructions and angles.

## Introduction to Geometric Figures- Chapter Summary

This Introduction to Geometric Figures chapter features video lessons that teach your 3rd graders how to construct line segments, measure angles, illustrate polygons and make geometric constructions with compasses and other tools. Switch around to various lesson topics with the video tags. You can also submit questions to instructors and test your students' grasp of the concepts by giving the chapter examination.

## Chapter Lessons and Objectives

Lesson Objective
Line Segments and Rays: Definition and Measurement Teachers explain the segment addition postulate in this lesson.
Points, Lines and Angles in Geometry Students learn about right angles, degrees and types of lines in geometry.
Make Geometric Constructions with Tools Instruction is given in the use of tools such as reflective devices, geometric software and string.
Practice Making Geometric Constructions with Tools Students have opportunities to learn to use the different tools when making geometric constructions.
Geometric Constructions Using Lines and Angles In this lesson, 3rd graders discover how to copy angles and line segments with construction.
Line Segment Bisection and Midpoint Theorem: Geometric Construction Students are taught how to bisect line segments.
Dividing Line Segments into Equal Parts: Geometric Construction Students can demonstrate their knowledge by completing examples.
Types of Angles: Vertical, Corresponding, Alternate Interior and Others Instructors explain the meanings of different angles.
Measuring Complementary, Supplementary, Vertical and Adjacent Angles Students are taught to measure these types of angles.
Constructing an Angle Bisector in Geometry In this lesson, teachers explain how to use tools to complete this function.
Constructing Equilateral Triangles, Squares and Regular Hexagons Inscribed in Circles Students are taught how to complete this process.
Regular Polygons During this lesson, students illustrate and learn the parts of regular polygons.

12 Lessons in Chapter 18: 3rd Grade Math: Introduction to Geometric Figures
Test your knowledge with a 30-question chapter practice test
Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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