Grade 3 Math at Home

Welcome! We’ll update this page every weekday with a new math activity. Many of the activities will be fun and worthwhile for students of all ages so that you can do them as a family. The following day, we’ll share examples of how other people did the activity so you can check your work and stretch your thinking.

The resources on this page focus on the major work for third grade:

  • multiplication and division to 10 ✕ 10, and multi-digit addition and subtraction

  • understanding fractions

  • solving problems about area

We’ll do a lot of work with measurement and geometry, too!

Activity of the Day

Check the archive to see past activities with sample solutions.

The map is an 11 by 11 grid. Letters A through K mark the rows. Numbers 1 through 11 mark the columns. Mountains cover squares B9, C4, H6, I10, and J3. The canyon covers squares D6–G6, plus E5–F5, and F7. Players use icons to fill the remaining squares. The icons represent forest, village, farm, water, monster, and mountain.

Math in Our World: Gaming Map

I’m playing a lot of board games lately. I like this game because I get to make a map of a town.

I have to work around the mountains and the canyon in the center. I can draw forests, villages, farms, or water.

Every section I draw has to be a rectangle with at least four grid squares inside. Monsters will live in any spaces left over.

My score is the sum of the areas of the sections I draw. The monster villages don’t count. I earn bonus points for larger sections.

Earn 1 bonus point for sections with areas greater than 9 but less than 16 square units. Earn 2 bonus points for for sections with areas greater than 16 square units.
  1. What do you notice? What do you wonder?

  2. Show what is happening using pictures, models, or numbers.

  3. What math questions can you ask about this situation? Answer the questions you can!

How could you get started?

  1. What is the largest rectangle you could draw? Will that cause a spot that could be taken over by monsters?

  2. What sections of the map might be the hardest to cover? You could start there to avoid leaving spaces for monsters.

Challenge

  1. Show your work to someone else, and explain your thinking. Did they understand?

  2. Ask whether they have any other questions you can answer!

Follow-Up

Make your own rules for this game. Maybe the map can include L-shaped or T-shaped sections.

Images from Cartographers by Thunderworks Games.
Permanent Link: Google doc for printing, copying, and sharing

We'd love to see your thinking! Share your work with Math at Home.

Additional Resources

Use the resources below for paper-and-pencil practice and to play math games at home. All resources are free to the public.

Want more Activities of the Day? Check out the archive for past activities, including sample responses.

Collections of practice pages organized by math skill. In English and Spanish with answer keys.

Digital math games to play independently or together online.

Math games for families to play together at home with materials and tools easily made, downloaded, or found online.

A special message to you!