Khan Academy
Square Roots And Real Numbers, Pre-Algebra
Sal works through several problems involving rational and irrational numbers and shows how to find the difference. This video is a good stepping stone for those preparing to take on more challenging algebra work.
Curated OER
The Number Line
Learn about the number line! The number line is defined, described and shown in this short video. The instructor tells learners how to use a number line with whole and real numbers as well as how it can be used to determine greater than...
Curated OER
Odd Numbers
Peter from the number underground is here to tell your class a math secret. He explains odd numbers. This clip is super cute and engaging plus it does a great job providing rules to determine if a number is odd or not. The math...
Curated OER
What's a Real Number?
A real number is any number that you can find on a number line. This includes rational and irrational numbers, which means positive numbers, negative numbers, decimal numbers, square root numbers and even pi.