Algebraic expressions are covered with mental “land mines.” Step the wrong way, and an expression will blow up on the page, making it impossible for students to move in the right direction. Fortunately there’s a simple thing students can do to succeed at simplifying algebraic expressions, and that simple something is using what I call […]

# Archive | Master Equations

# Not all variables are created equal

Variables do not all serve the same purpose. Making this clear helps students more deeply understand algebraic equations, such as the equation for a line. This post shows how to understand the two kinds of variables in the slope-intercept form of a linear equation.

# Conquering Mixture Problems — Answers

Answers to three mixture problems.

# Conquering Mixture Problems — Practice

Solve these mixture problems to increase your skill at solving tricky algebra word problems.

# Conquering “Mixture” Problems, Part 1

Mixture problems … they may look impossible. But when you use “master equations,” it turns out that they are easy to solve. This little post shows you how to get started taming these problems.

# Using “Master Equations”

Word problems can be slayed … when you use the right tools. And the right tool, most often, is a “Master Equation.” Read this blog to find out what a master equation is and how you can use them to become a word problem genius!