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Learning to identify prime numbers can be tricky. But this fun card game can make memorizing some basic prime numbers a breeze.

In Your Prime

Players use their knowledge of factors and multiples to help their dinosaur win this math battle.

Dino Crunch: Finding Multiples

Learners differentiate between prime and composite numbers while unearthing dinosaur bones.

Dino Bones: Prime Numbers

Grow your fourth grader's number sense skills with this fishing-themed math game! 

Dino Fishing: Composite Numbers

Help Roly to catch all the dinos in this high-flying fourth grade math game! 

Dino Pet Drop: Identifying Multiples (Game 1)

Hone mental math skills and boost knowledge of factors and multiples in this skateboarding adventure.

Dino Skateboarding: Find the Factors

Players race to determine which answer choice is not a factor of the given number.

Dino Skateboarding: Which Factor Does Not Belong?

Boost learners' grasp of number theory with this online math game all about factors and multiples!

Jumpy: Which Factor Does Not Belong?

Become the greatest at finding the greatest common factor with this matching game! 

Match: Greatest Common Factor

Build number sense skills while practicing finding the least common multiple in this matching game!

Match: Least Common Multiple

How well do you know your rational and irrational numbers? Find out with this number sense game! 

Dino Crunch: Irrational Numbers

Understanding how our ten number system works enables students to see interesting and useful patterns and relationships in these math activities. These patterns allow students to develop more efficient mental math strategies when multiplying by multiples of 10 or 100. Students will also review rounding and apply this skill to larger numbers - up to 100,000’s place.

Number Sense 3

Players navigate rivers and streets while demonstrating their knowledge of factors and multiples.

Jumpy: Find the Multiples

Teach your students to use partial products as a strategy to multiply multi-digit numbers. 


Multiplication with Partial Products

Have your fourth graders work through multiplication problems by learning about factors and why they are important for problem solving.

Find the Factors of Prime and Composite Numbers

Children practice identifying factors with the help of a factor tree in this multiplication worksheet.

Factor Tree

Students will match a product to its factor tree and list of prime factors in this interactive activity.

Matching Factor Tree Cards

This worksheet gives students practice identifying multiples of a number.

Which Is Not a Multiple?

Use these vocabulary cards with the EL Support Lesson: Conversations About Prime and Composite Numbers.

Vocabulary Cards: Conversations About Prime and Composite Numbers

Think about the importance of determining the factors of a product.

Factor or Not?

Use these vocabulary cards with the EL Support Lesson: Factor Friend or Foe?

Vocabulary Cards: Factor Friend or Foe?

Use this glossary with the EL Support Lesson: Factor Friend or Foe?

Glossary: Factor Friend or Foe?

Use these vocabulary cards with the EL Support Lesson: Doubling Multiples for Division.

Vocabulary Cards: Doubling Multiples for Division

Use this glossary with the EL Support Lesson: Doubling Multiples for Division.

Glossary: Doubling Multiples for Division

Use these vocabulary cards with the EL Support Lesson: The Factor Tree Strategy.

Vocabulary Cards: The Factor Tree Strategy

Use this glossary with the EL Support Lesson: The Factor Tree Strategy.

Glossary: The Factor Tree Strategy

Use these vocabulary cards with the EL Support Lesson: Multiples and Skip Counting.

Vocabulary Cards: Multiples and Skip Counting

Use this glossary with the EL Support Lesson: Multiples and Skip Counting.

Glossary: Multiples and Skip Counting

What is a prime number? A number is prime when it is only divisible by 1 and itself. Help your little mathematician recognize prime numbers.

Finding Prime Numbers

Use your multiplication skills to find factors of 60 and better understand time.

Factors of 60

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