Category Archives: Algebra

Another Reason to Ban PEMDAS

Another Reason to Ban PEMDAS

PEMDAS is riddled with problems. Here’s a situation where real students were directly affected by this horrid mnemonic.More

Inequalities on a Number Line

Inequalities on a Number Line

Y’know those weird rules on solving inequalities? How about explaining it using a number line?More

How to Teach Square Roots

How to Teach Square Roots

Did you know you can teach square roots with fractional exponents – and it just might work better that using radicals! More

Teaching Square Roots with a Non-PC Analogy

Teaching Square Roots with a Non-PC Analogy

What do you think about this analogy I use when teaching square roots and other manipulations of radicals? It’s pretty non-PC, but it seems to work.More

How to Introduce Function Transformations

How to Introduce Function Transformations

Do you teach transformations? Are they tough to introduce? Try this activity!More

Why is the y-intercept called b?

Why is the y-intercept called b?

I’ve always wondered, “Why is the y-intercept called b?” And just today I discovered the answer!More

The Distributive Property – What Is It, Anyway?

The Distributive Property – What Is It, Anyway?

Here is a handy way to help students understand what the distributive property is really all about.More

Factoring Polynomials – FREE Worksheet

Factoring Polynomials – FREE Worksheet

When factoring polynomials it’s sometimes nice to use a graphic organizer to keep track of all your work. Here’s a free one!More

Highlights Magazine Math Puzzle – More than Meets the Eye

Highlights Magazine Math Puzzle – More than Meets the Eye

Do your children read Highlights Magazine? Check out a new way to look at one of the math puzzles!More

Math Rules & Their Destruction of Education

Math Rules & Their Destruction of Education

Teaching math rules to kids sounds nice, until they follow them blindly – through all their math classes!More