Curated OER
Factorize
In this factorizing worksheet, students factorize using a given identity formula, 5 problems total. Answers are included on page 2.
Shodor Education Foundation
Shodor Interactivate: Factorize
This Shodor site gives a brief explanation of factorization, and it allows you "to find all of the factorizations of a given number and then draw the product as the area of a rectangle on a grid."