Geometry Unit: Lines, Angles, and Triangles

If you are looking for geometry lessons for third, fourth, or fifth grade, this unit will be useful for you. This geometry unit contains math worksheets and multi-modal activities for the following concepts:

✅ intersecting lines
✅ parallel lines
✅ perpendicular lines
✅ lines
✅ line segments
✅ rays
✅ acute angles
✅ obtuse angles
✅ right angles
✅ isosceles right triangles
✅ equilateral acute triangles
✅ scalene obtuse angles
✅ congruent figures

This unit includes a total of 5 visual and kinesthetic activities for students, and 4 worksheets. These lessons should take about a week to complete.

This geometry unit contains:

✅ Types of line relationships demonstration and activity
✅ Types of lines demonstration and activity
✅ Types of angles demonstration and activities
✅ Classifying triangles homework sheet (2 pages, with answer key)
✅ Triangles exploration (with answer key)
✅ Types of angles worksheet
✅ Lines worksheet
✅ Line pairs in figures worksheet (with answer key)
✅ Types of triangles worksheet (with answer key)
✅ Geometry open response question worksheet

✅ Update: Teachers Pay Teachers has included a digital overlay. This means you can upload it directly to your Google Classroom from this site. Students can type answers in the boxes provided. They can use the pen tool to circle chosen answers.


The materials that you will need to complete the activities with your class are:
► Masking tape
► Clear tape
► Popsicle sticks
► Permanent markers (orange, red, blue)
► Colored construction paper

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⭐ Geometry Mini Unit: 3 Dimensional Figures
⭐ Snowflake Project for Geometry
⭐ Coordinate-points-and-ordered-pairs-robot-project
⭐ Measuring Degrees of Angles Task Cards and Activities
⭐ Parallel and Perpendicular Line Pairs Robots
⭐ Drawing Perpendicular and Parallel Lines with Tools
⭐ Drawing Parallel and Perpendicular Lines with Tools Project