KS3 / Low Ability KS4 resource on introducing prime numbers and then leading on to how to write a number as a product of its prime factors. Examples with solutions included and plenty of questions with answers. All you need to teach a lesson on this topic.
Lesson that I made with the help of some other resources found on TES: Pupils will investigate prime numbers to 20 and explain why they are prime numbers, and work out which numbers less than 100 are prime numbers.
An easy to use, free online adaptive quiz from Mangahigh.
Understand the definition of a prime number as an integer with exactly 2 factors and be able to test for a number being prime. Know that 2 is the first prime number and the only even prime number. No need to register, just click on the link below to get started.
Cut out the circles and measure the radius, diameter and circumference of them. (use string for circumference and then measure that).
There is also a sheet for recording which helps the children to see the link between radius and diameter.
Some resources I made for my Kindergarten/Grade 1. The sorting activity is one I found but updated with things more relevant.<br/>Appropriate for Early Childhood Education (Pre-K and younger). ECE-SC, ECE-SC-na