Showing posts with label pre-cal. Show all posts
Showing posts with label pre-cal. Show all posts

Sunday, August 19, 2012

Imaginary Numbers

Imaginary Numbers Tutorial



As I was studying to take a trigonometry test so I can take Calculus this semester for fun (crazy, huh?), I found this site.  It is a quick run through of the imaginary (complex) number rules. 

What I found helpful was the practice problems.  The answers are hidden until you pass the mouse over them and then they appear.  Quick, easy problems that allow a student to reassure themselves that they get it.

This site also offers iPhone and Adroid apps.

Wednesday, August 8, 2012

Cool Math- Algebra



Algebra Lessons at Coolmath.com

Coolmath Algebra is a colorful site that covers an extensive list of algebra subjects.  This resource is best used as additional notes/examples for a topic covered in class or advanced reading for one to be covered in class.  The algebra site is organized by big topics such as exponents, polynomials, factoring, solving equations, functions etc.  After you choose the "Big Topic" then you select a specific example within. 

For example . . .
Big Topic: Functions
Specific Example: "What's a Function Intro"

It's set up like a textbook with chapters and sections.

Each section goes through an explanation of one example or more and then guides you to practice problems at the end.

This website is thorough and provides an alternative approach.  Sometimes students need another way of seeing a process before it will click.  Therefore, this is a great study source.

By the way- there is also Coolmath for Pre-Algebra, Pre Cal and Calculus, a math dictionary, puzzles, math games and math lessons by course