PPT
Curated OER

Prime Numbers: Eratosthenes' Sieve

For Teachers 4th - 6th
By offering a step-by-step explanation of how to identify prime numbers, this presentation would be a terrific way to give learners a visual example of prime numbers. This is a simple, and easy way, for students to understand the "why"...
PPT
Curated OER

Darwinism: The Origin of the Species by Natural Selection.

For Teachers 7th - 10th
The Darwin PowerPoint covers many of the Scientists that worked on similar concepts to Darwin and that were involved with famous  theories.  students are informed about the basic thinking behind natural selection and examples...