Curated OER
Math - Divisibility
Students explore the concept of divisibility. In this divisibility lesson, students determine which numbers are divisible by another number.
Other
Eratosthenes' Prime Number Sieve
Discover all the primes up to the number 400 by using this interactive table. Simply click on a number and its multiples disappear.
Quia
Quia: Divisibility and Prime
If you enjoy playing the game Battle Ship you will enjoy this game. When you locate an enemy ship to get the hit you must correctly answer a question using your knowledge of divisibility rules and prime numbers. It is a fun way to...
University of Cambridge
University of Cambridge: Nrich: A Conversation Piece
On this one page website sharpen your logic, division and prime number recognition skills while working on this challenge. The solution is available to double check your solution.