Lecture-1

Lecture-1 - Lecture 1. The Number Line The Number Line is...

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Unformatted text preview: Lecture 1. The Number Line The Number Line is the most important picture in mathematics. Minus 3 Minus 2 Minus 1 1 2 3 Minus 5 Slash1 2 Minus 3 Slash1 2 Minus 1 Slash1 2 1 Slash1 2 3 Slash1 2 5 Slash1 2 To make a number line, one decorates a naked line. Follow these steps: STAGE I (setting things up) Choose a unit of length. Choose a point on the line. Choose a direction from the point. Unit Chosen point Chosen direction STAGE II (labeling the integer points) Lay copies of the unit end-to-end, starting from the chosen point and going in the chosen direction. Label the endpoints of the units with the number of units one crosses to reach them. 1 2 3 Lay copies of the unit, end-to-end, starting from the chosen point and going in the opposite of the chosen direction. Label the endpoints of the units with the negative of the number of units one crosses to reach them....
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This note was uploaded on 11/23/2011 for the course MATH 6302 taught by Professor Madden during the Summer '11 term at LSU.

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Lecture-1 - Lecture 1. The Number Line The Number Line is...

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