30 free lessons · Worked examples and practice

Grade 1 math

Explore how numbers describe collections, how addition joins them, and how subtraction changes them. Use familiar objects to build confidence before moving to written symbols.

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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.

Count, compare, and organize quantities
Explain simple addition and subtraction
Notice shapes, measures, and patterns

Before you begin

You can begin by counting aloud with an adult. Gather small objects such as blocks or pencils so each number has something you can point to.

How to study these lessons

Read one question aloud, build it with objects, and draw what happened. Ask the learner to tell the story of the answer before writing a number sentence.

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 1.

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.

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Teaching videos, chapter by chapter.

2 teaching videos are available for this level. Find each recording with its exact matching lesson or practice question.

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Your Grade 1 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.