30 free lessons · Worked examples and practice

Grade 3 math

Build multiplication and division from equal groups, then connect fractions to parts of a whole. Use these tools to reason about area, measurement, and information in tables.

Start the first lesson Explore 100 animations Explore all 30 lessons

Use the pictures and worked reasoning as a starting point. Make your own sketch, explain your choices, and check the result.

Your study guide

What you will explore.

Connect multiplication and division
Represent and compare simple fractions
Use area, measurement, and data models

Before you begin

Be comfortable with addition, subtraction, and place value. You can use counters or arrays while learning multiplication facts.

Review Grade 2

How to study these lessons

Draw an array, fraction strip, or labeled shape to match the question. Check your numerical result against the picture rather than relying on a memorized rule alone.

Work at your own pace. Open a hint when you need it, then try again before revealing the complete explanation.

Grade labels are starting-point guides; school sequences vary. University lessons introduce selected topics and assume the prerequisites listed on each page.

Practice with a moving example

750 guided practice chapters for Grade 3.

Try a distinct question, open a hint, compare the worked solution, and explore its interactive animation. These scenario chapters give you more practice within this level’s topics.

Open the practice collection

Learn with Amar

Teaching videos, chapter by chapter.

1 teaching video is available for this level. Find each recording with its exact matching lesson or practice question.

Watch teaching videos and browse chapters

Learn one idea at a time

Your Grade 3 lesson collection.

The lessons appear in their suggested study order. Choose the first lesson for a starting point, or use the search and subject filters to review a particular skill. Read the prerequisites whenever you change topics.