Key Words:
algebraic expression
variable coefficient constant term operation simplify isolate substitute |
|
omkrets
area kvadrat rektangel triangel langd bredd hojd bas enheter fyrkantiga enheter sidan |
Key Concepts:
You can apply the same knowledge about algebra and geometry together.
PERIMETER: Since the perimeter is the sum of all sides, calculating the perimeter with variables just means adding up all the sides then simplifying.
AREA: Since there are different formulas for solving the area of different shapes, you just fill in the needed information and then simplify.
Examples:
PERIMETER: Since the perimeter is the sum of all sides, calculating the perimeter with variables just means adding up all the sides then simplifying.
AREA: Since there are different formulas for solving the area of different shapes, you just fill in the needed information and then simplify.
Examples:
Videos & Slideshows:
Online Practice:
http://phet.colorado.edu/sims/html/area-builder/latest/area-builder_en.html
http://www.learnalberta.ca/content/me3us/flash/lessonLauncher.html?lesson=lessons/12/m3_12_00_x.swf
http://www.matematicasdivertidas.com/Zonaflash/juegosflash/perimeterarea.swf
http://www.learnalberta.ca/content/me3us/flash/lessonLauncher.html?lesson=lessons/12/m3_12_00_x.swf
http://www.matematicasdivertidas.com/Zonaflash/juegosflash/perimeterarea.swf