Saturday, January 18, 2014

Circulatory and Cardiovascular System

Can you find your pulse?  Place your right hand in the center of your chest.  Move your hand an inch or two to your left.  What do you feel?  Watch this video to find out what is going on inside your chest.

Circulatory System

Parentheses

Do parentheses make a difference when solving a problem using order of operations?  Do they change the value of an expression?  Watch this video to find out.

Parentheses