### Algebra - EEWeb

An Engineers Quick Algebra Reference

### Error-404 - Rainbow Resource

Error-404 - Rainbow Resource

### Are Basic Math Facts Worth Teaching?

New to Squarehead Teachers? Welcome! :-) Connect with me via Facebook, Pinterest, Bloglovin’ or Twitter! When I first heard about this article, I was amazed. What? Not teach kids to memorize …

### When Differentiation Feels Impossible

I know that differentiation is SO important. I know it is the right thing to do. But sometimes it is SO difficult to make sure I am meeting the needs of all learners. Right now we’re pluggin…

### Math Teacher Mambo

"Be kind whenever possible. It is always possible." ― Dalai Lama

### Quadratic Functions Foldable

I've been meaning to share this foldable for a couple weeks now, but I finally decided to do it now because I was just on Pinterest and noti...

### Trig Reference Angle Cheat Hand

Observe... Flip down the finger that corresponds to the angle whose sine and cosine you need. The number of fingers to the left gives you the sine, and the number of fingers to the right gives you the cosine. So if you flip down your index finger which corresponds to 30 degrees... there is one finger to the left. $sin{(30)}=\frac{\sqrt{1}}{2}$ and there are three fingers to the right. $cos{(30)}=\frac{\sqrt{3}}{2}$ Try it for the fingers that correspond to the other reference angles. For…

### How to Memorize Trig Identities – Free Download!

Trig identities are a bear to memorize. But with this color coded free download, they're just a bit easier!

### Dividing By Zero Is Not A Game Poster

Your walls are a reflection of your personality, so let them speak with your favorite quotes, art, or designs printed on our custom posters! Choose from up to 5 unique, high quality paper types to meet your creative or business needs. All are great options that feature a smooth, acid-free surface with vibrant full color printing. Browse through standard or custom size posters and framing options to create art that’s a perfect representation of you. Perfect for small posters and printsMatte…

### Reference Angles in Radians

Can your students remember standard reference angles in radians? Use regular counting and this animated graphic to help them!

### 6 Things You Didn't Know You Could Do With Your Graphing Calculator

Now you can do more than just type "HELLO" upside down. Here are six fun things to do with your graphing calculator.