Prime Time, Grades 4-5


Students learn the basics of prime factoring to create a colorful gameboard, while reinforcing their fluency with multiplication facts. Includes instructions for Grade 4 and hands-on materials for a small group of 4 students.

Activity Details

Math skills covered

  • Identify factors of a given number (4.OA.B.4)
  • Determine whether a number is prime or composite (4.OA.B.4)

What’s included

Digital resources

  • Teacher Guide for Grade 4
  • Display Slides for Grade 4

Hands-on materials (for 4 students)

  • Pack of student printouts – blank arrays sheets
  • Classroom poster with completed chart