seeing 'variations on a theme' for the Unit Circle!!!

### Trig Identities and more…

Trig Reference sheet with ALL those identities, formulas, also includes Taylor Expansions, Unit Circle and tables of values

### Unit Circle Kit

Unit Circle Kit

### Visualizing Operations on Functions

For my Precalc kids, I started toying with this idea of presenting function operations using diagrams to help kids visually organize domain changes and to see how equations relate to one another. Here's stab #1 (we started doing this earlier this week. I plan on finishing this tomorrow and easing our way into composition of functions...). My reasoning for organizing it like this is to show kids that addition, subtraction, and multiplication are all very forgiving operations. As long as f(x)…

### www.brandforce.com

Future Bird: Take flight with this forward-thinking name. Possible uses: A travel brand. A pet supplies brand. A bedding company. A consulting group.

### www.brandforce.com

Future Bird: Take flight with this forward-thinking name. Possible uses: A travel brand. A pet supplies brand. A bedding company. A consulting group.

### Equation: Blood Spatter a Math Matter

The forensics of blood spatters: A new formula using high school trig and introductory physics helps investigators determine whether a victim took a blow standing up.

### Math Movies at HoodaMath.com

Play Movies on Hooda Math. Our unblocked addicting Movies movies are fun and free. Also try Hooda Math online with your iPad or other mobile device.

### Honing My Skills Instruction

Skills instruction was something that I was not good at when I first started teaching. I found it boring compared to big ideas and didn’t really understand why kids didn’t get things fr…

### Type I and Type II Errors

Within probability and statistics are amazing applications with profound or unexpected results. This page explores type I and type II errors.

### High School Trigonometry: Teaching Resources for Trigonometry

Teaching Resources for Trigonometry - findingDulcinea. Find resources for trigonometry lesson plans, worksheets, activities, curriculum planning and more.

### Trig River - Activity

Students learn about and use a right triangle to determine the width of a "pretend" river. Working in teams, they estimate of the width of the river, measure it and compare their results with classmates.

### The Central Limit Theorem

Within probability and statistics are amazing applications with profound or unexpected results. This page explores the amazing application of the central limit theorem.

### What is an irrational number? Topics in precalculus

A rational number is any number of arithmetic. A proof that square root of 2 is not rational. What is a real number?

Traveling salesman problem