In this excerpt from an upcoming math workbook, your junior detective will make a positive ID on obtuse, acute and right angles.

Help your fourth graders take their understanding of angles and lines to the next level with this creative geometry challenge! Students will have fun drawing various types of shapes based on written descriptions and your students' knowledge of angles.

Find the missing angle in a triangle using addition and subtraction.

Students get to practice measuring angles using built-in protractors in this fun geometry activity! After measuring, they'll put their angle knowledge to the test by classifying each angle as acute, obtuse, right, or straight.

Steering a boat is harder than it looks! Can your child use their angle and geometry knowledge to steer this ship in the right direction?

Give your students practice finding diagonal distances between two points with this two-page geometry worksheet!

Get more practice finding the measures of missing interior and exterior angles of triangles with this geometry worksheet!

Students use the Triangle Angle-Sum Theorem to solve for the variable in triangles where two or more angle measures are linear algebraic expressions.

Students practice using the converse of the Pythagorean theorem to identify right triangles with this geometry worksheet!

Students use the Exterior Angle Theorem to solve for the variable in triangles where two or more angle measures are linear algebraic expressions.

Turn your child into a geometry detective! How many degrees is each missing angle in these quadrilaterals?

How much does your child know about triangles? Can they figure out the missing angle in each of these triangles?

Introduce geometry learners to the Pythagorean theorem with this helpful one-page reference sheet!

Find the measures of missing interior and exterior angles of triangles with this geometry worksheet!