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Tally Marks
A small mark used to help keep track of a count.
More Vocabulary
Number Line: A line for representing and graphing numbers. Each point on the line corresponds to a number.
NUMBER LINE
(to use for problems)
More Vocabulary
Negative Numbers:
Numbers less than 0.
-15, -10, -1 are negative numbers
Oblique: Slanted or sloping: not horizontal or vertical
Math Language
Vocabulary
Integers: The set of counting numbers, their opposites, and zero, the members of the set
ex: -2, -1, 0, 1, 2...
Line Segment: A part of a line with two distinct endpoints.
OBJECTIVE
*Draw a number line; count unit segments on a number
line.
* Identify and compare integers on a number line.
* Identify the number represented by a tally.