# Category Archives: Algebra

### Hang onto Negatives in Math Problems

You may be an optimist. You may always see the positive side of things. But in math, you gotta hang onto your negatives. Continue Reading →

### How to Solve Nonlinear Inequalities – Introducing ThingLink

Some quick steps to solving nonlinear inequalities created by an awesome new presentation tool – ThingLink! Continue Reading →

You can use the tangent lines from a parabola to make a Christmas Tree. Really! Continue Reading →

### Another Reason to Ban PEMDAS

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

### Inequalities on a Number Line

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

### 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! Continue Reading →

### 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. Continue Reading →

### How to Introduce Function Transformations

Do you teach transformations? Are they tough to introduce? Try this activity! Continue Reading →

### 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! Continue Reading →

### The Distributive Property – What Is It, Anyway?

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