4.G.A.1 Worksheets, Workbooks, Lesson Plans, and Games

This colorful worksheet asks your fourth grade geometry detective to practice identifying right triangles.

Is your fourth grader reluctant to practice geometry? This colorful worksheet, which explores obtuse triangles, may be just what he needs!

Let your fourth grader play triangle detective: can she spot the acute triangles on this worksheet?

Fourth graders learn the difference between parallel and perpendicular lines by drawing them in this math worksheet.

This worksheet helps kids understand the difference between parallel and perpendicular lines.

Give your child some practice identifying lines, line segments, and rays with this geometry worksheet.

Geometry is everywhere! Lines, line segments, and points are all around. In this lesson, your students will learn about important aspects of geometry.

Get your students up and moving as they learn the basics of geometry. Your competitive students will love this game and put their new skills to the test with a worksheet.

In this lesson, students engage in interesting hands-on activities that help them discover the properties of parallel, perpendicular, and intersecting lines. Your little mathematicians will have a blast as they learn about geometry.

In this lesson, students will use a multi-sensory approach by engaging in a hands on activity with toothpicks to create, explore, and learn about the properties of four different types of angles.

In this lesson, your students will use their auditory, visual, and kinetic skills to learn about angles. Students will use their artistic and linguistic abilities to learn about angles and lines.

Blast off! Kids make angles between 0 and 180 degrees to send Bozo flying across the Big Top in this bizarre geometry game.

Kids identify lines, segments, and rays using Penelope's artwork in this geometry game.

Students will become experts at classifying angles after this exercise teaches them the various types.

Students will love practicing their newfound skill in drawing line segments and rays after mastering this exercise.

Many students don’t realize they can use an angle measures as an additive until they have completed this exercise.

Teach students how to measure angles without the confusion of a protractor with this easy to use exercise.