From Concrete to Abstract: Helping ALL Students Develop Algebraic Thinking Skills Heather Sparks, NBCT Taft Middle School Oklahoma City Schools www.hisparks.com.

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From Concrete to Abstract: Helping ALL Students Develop Algebraic Thinking Skills Heather Sparks, NBCT Taft Middle School Oklahoma City Schools August 9, 2010

*Adapted from Van de Walle and Lovin

Turtle and Snail On summer day, Little Green Turtle challenged Teeny Tiny Turtle to a race from the oak tree to the elm tree. Turtle travels at a rate of 3 feet per minute and Snail travels at a rate of 2 feet per minute. The trees are 12 feet apart. STORY:

Turtle and Snail 12 feet PICTURE

time distance TABLE Turtle Snail

RULE OR EQUATION Turtle: multiply by 3 d= 3t Snail: multiply by 2 d = 2t

GRAPH distance in feet time

x y x y What’s My Rule?

Every graph tells a story…

Let’s Apply!  Ball Bouncing  Slinky Stretch  Cup Stacking  Party Tables

Extend and Explain

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