Challenge your third grader to identify acute, right, and obtuse angles with this geometry worksheet.

Teach your students to sort triangles as acute, right, or obtuse based on their internal angle type.

Children find the unknown angles for five triangles, then identify whether the triangle is right, acute, or obtuse, in this geometry worksheet.

Fifth graders review types of angles, triangles, and polygons in this handy geometry review.

This math worksheet calls on students to examine the objects in their environment, measure them, and calculate the surface area in centimeters or inches.

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

Kids practice recognizing ovals, diamonds, and stars as they color a rocket shooting through space.

What comes next? Your kindergartener will have fun recognizing patterns—an important part of early math—with this colorful worksheet.

Help your child practice recognizing rectangles with this colorful worksheet that challenges him to count up all the rectangles in the picture.

Kids get to know shapes better by counting their line segments, endpoints, and angles, and record the info in this handy chart.

Ovals, ovals, and more ovals! Can your kindergartener track down all the hidden ovals in these colorful images?

Here's a geometry challenge for your first grader that puts his counting skills to work: can he count the number of sides each shape has?

Does your child need help identifying patterns? For each group of words given, he'll fill in the blanks to complete the pattern.

Is your child up for a pattern challenge? She'll flex her pattern recognition skills as she fills in the blanks with the correct words to complete each pattern.

Does your kid notice that the cars are lined up in patterns? Take a closer look at the colorful cars and practice some pattern recognition.

Challenge your kindergartener to find all of the rectangles in these bright images. He'll boost observational skills and shape know-how at the same time.

There are a slew of squares hiding in these images. Can your kindergartener find them all? Getting familiar with shapes increases her math readiness.

All of these pictures are hiding some sneaky triangles. Can your kindergartener find them all in this colorful worksheet?

Help your child learn to recognize scalene triangles with this worksheet.

Here's a colorful math challenge for your kindergartener: can he count up all the triangles in the birthday party scene?

Can your kindergartener find the numerous circles hidden in these images? Practicing with shapes is a great way to gain early insight into geometry.

Boost your child's understanding of geometry dimensions with this worksheet that challenges her to match 2D and 3D Shapes.

Here's a worksheet that shows kids how shapes can be found in real things by asking them to find and count all the different shapes in a picture of a garden.