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Discover our engaging 3.G.A.1 Geometry worksheets, designed specifically for Grade 3 students! These printable resources focus on the composition and decomposition of shapes, allowing young learners to explore geometric concepts through hands-on activities. Each worksheet features a range of problems that reinforce key geometry skills, complemented by answer keys for easy grading and guidance. Perfect for classroom use or home practice, our worksheets help children build confidence in their mathematical abilities while fostering creativity and critical thinking. Dive into our collection of geometry worksheets and support your child’s learning journey today!


Check out this FREE Grade 3 3.G.A.1 Trial Lesson!

Checkmating Patterns: Two Rook Mate

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Make Quadrilaterals Worksheet
Make Quadrilaterals Worksheet

Make Quadrilaterals Worksheet

This fun and colorful worksheet will help your child understand and identify quadrilaterals. It's simple and encourages them to draw lines to create a square, rectangle, rhombus, trapezoid, and parallelogram. Stimulate their minds and watch them learn while they have fun!
Make Quadrilaterals Worksheet
Worksheet
Identify Quadrilaterals Worksheet PDF
Identify Quadrilaterals Worksheet PDF

Identify Quadrilaterals Worksheet

This PDF worksheet helps kids identify different quadrilaterals using pictures and measurements. From rectangles to diamonds, children will use their knowledge of geometry to observe and classify shapes. A colorful and fun way to learn!
Identify Quadrilaterals Worksheet
Worksheet
Beware of the King! Worksheet
Beware of the King! Worksheet

Beware of the King! Worksheet

Teach your child to play chess and gift them valuable skills like critical thinking, logic, and reasoning! This free PDF worksheet will teach them the Two Rook Mate strategy to checkmate an enemy king with two rooks. They'll learn how to keep the king away and move the rooks for checkmate. Have screen-free fun together!
Beware of the King! Worksheet
Worksheet
Odd Shape Out Worksheet for Grade 3
Odd Shape Out Worksheet for Grade 3

Odd Shape Out Worksheet for Grade 3

Time to test your child's shape knowledge! With this worksheet, help them find the odd shape out in each row and check the box under it. Print out the pdf and look through it with them – each row has four brightly colored shapes. See if they can spot any differences among them and then check the box below the shape that does not belong.
Odd Shape Out Worksheet for Grade 3
Worksheet
Groups of Shapes Worksheet
Groups of Shapes Worksheet

Groups of Shapes Worksheet

Can your child identify and name shapes? Help them learn the unique features of each and have them check the correct name for each group in the colorful pictures on this worksheet.
Groups of Shapes Worksheet
Worksheet
Quadrilateral Family Traits Worksheet
Quadrilateral Family Traits Worksheet

Quadrilateral Family Traits Worksheet

Review with your students what a quadrilateral is: four sides and angles. Now, go through the worksheet with them. Look at the pictures and help them check the boxes to identify the shapes.
Quadrilateral Family Traits Worksheet
Worksheet
Sorting Shapes Worksheet
Sorting Shapes Worksheet

Sorting Shapes Worksheet

Before beginning, ensure your child is familiar with quadrilaterals (4 sides) and triangles (3 sides). This tracing exercise is easy: sort the shapes into the two groups and trace the dotted lines to the correct group.
Sorting Shapes Worksheet
Worksheet
Quadrilateral Maze Worksheet
Quadrilateral Maze Worksheet

Quadrilateral Maze Worksheet

Does your kid love dogs? If so, this exercise is ideal for them! Help Charlie the pup find his way back to his owner, James, in the quadrilateral maze worksheet. Your child must trace Charlie's path only through squares and rhombuses in order to solve it. Careful planning is key!
Quadrilateral Maze Worksheet
Worksheet
Two Rook Mate Strategy Worksheet
Two Rook Mate Strategy Worksheet

Two Rook Mate Strategy Worksheet

Kids who can play stress gain better reasoning, logic and critical thinking skills. This worksheet can teach kids the Two Rook Mate strategy to checkmate their opposite king. They'll discover how to close in the enemy king and protect with another rook, all the while enjoying a screen-free activity!
Two Rook Mate Strategy Worksheet
Worksheet
Two Rook Bingo Worksheet
Two Rook Bingo Worksheet

Two Rook Bingo Worksheet

Kids can have fun and strengthen their visual perception skills with Two Rook Mate Bingo. This worksheet challenges them to identify which chess boards show a king in checkmate using the Two Rook Mate strategy. Once they choose the correct one, they get the prize for checkmate! Playing chess helps kids with strategy, logic, and critical thinking.
Two Rook Bingo Worksheet
Worksheet
Two Rook Mate Practice Worksheet
Two Rook Mate Practice Worksheet

Two Rook Mate Practice Worksheet

Chess is all about checkmating your opponent. This free Two Rook Mate practice worksheet is a fun way for your mini strategist to do just that. They can draw a line showing their move then pick the correct notation for the mate! A great way for them to practice fine motor skills, too.
Two Rook Mate Practice Worksheet
Worksheet
Help Clean Up Parallel City Worksheet
Help Clean Up Parallel City Worksheet

Help Clean Up Parallel City Worksheet

Explain to your kids what parallel sides are and have them identify the shapes with parallel sides in the picture. Then let them draw a line through all the shapes with at least one pair of parallel sides. This colorful worksheet will help them understand and practice this concept.
Help Clean Up Parallel City Worksheet
Worksheet
What Is a Quadrilateral? Worksheet
What Is a Quadrilateral? Worksheet

What Is a Quadrilateral? Worksheet

Does your kid know what a quadrilateral is? If not, this worksheet can help teach them. Explain that a quadrilateral is a shape with four sides and give examples, like a square or a rectangle. Then ask them to circle the quadrilaterals in the pictures. If they already know what a quadrilateral is, this task might be too easy.
What Is a Quadrilateral? Worksheet
Worksheet


Understanding the principles outlined in 3.G.A.1 Geometry is pivotal for third graders as it lays the groundwork for spatial reasoning and critical thinking skills essential in everyday life. This standard focuses on attributes of shapes and how to use them to classify and understand geometric figures. Parents and teachers should care about this standard because it not only enhances math skills but also fosters creativity and problem-solving abilities.

In this grade, students learn to identify and differentiate between two-dimensional (2-D) shapes and three-dimensional (3-D) shapes. Recognizing properties such as the number of sides, vertices, and angles helps children make sense of the visual world around them, from street signs to architectural structures.

Additionally, embracing geometry aids in the development of logical reasoning; students begin to make connections between different concepts, improving their overall analytical prowess. These skills are not limited to math—they are transferable to subjects like art and science, where spatial awareness and geometric understanding play crucial roles.

Ultimately, by prioritizing understanding in 3.G.A.1, parents and teachers are empowering students to think critically, enabling them to tackle not only academic challenges but also real-life situations effectively.