Ever need to find the GCF of two numbers? Here’s a trick for finding the GCF of any two numbers — very quickly. This is an original trick, so I doubt you’ll find it anywhere else online. But most important, it’s easy to use, and it works no matter how large the numbers might be. Also nice … learning this […]

# Archive | Factoring

# How to Decrease Algebraic Mistakes – Part 6

Factoring by grouping is one of the trickier skills in Algebra 1. But by using a special form of notation, the double-slash, students can do this skill with greater ease. This post explains how this notation can help students tackle this challenging form of factoring.

# How to factor out the GCF with stories

Real-life stories, related to algebraic procedures, can dramatically help students understanding both what the process is about, and how to do the process. Here I show how two real-life stories can help students master the steps required for factoring the GCF out of a polynomial.

# Divisibility by 4 — Principles & Trick

It is not hard to find out if 4 goes into a number evenly. Here is a trick that shows you how to find out very quickly.