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Activity: Walking the Line: Activities for the TI-73 Number Line App
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Description: These activities are intended to help students use the number line and the fraction line to develop both an operations and number sense. Several activities focus on operations with the integers, such as the mystifying process of subtracting negative integers, providing students a tool for interpreting processes and understanding results. Other activities focus on using the number and fraction line for various types of skip counting; it's not just for whole numbers anymore! The fraction line activities allow for examining relationships between ordinary fractions, decimal fractions, and percentages. The activity book is available for purchase or each activity can be downloaded free in PDF format.
Technology Type: TI-73 Explorer 
Authors: Christine A. Browning
Dennis St. John
Language: English 
Cost: Does not require payment for use

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Activity: Addition and Subtraction
Tool: Number Line App
Courses: Math 6 Fractions, Percentages, Integers
Math 7 Fractions, Percentages, Integers
Algebra Integer Operations