2. Math vocabulary Lessons 6-10 & Investigation 1

3. Fraction Numbers that name parts of a whole

4. Denominator The bottom number of a fraction

5. Numerator The top number of a fraction

6. Endpoints Points at which segments end

7. Line A straight collection of points extending in opposite directions without end

8. Metric System An international system of measurement based on multiples of ten

9. Ray A part of a line that begins at a point and continues without end in one direction

10. Segment A part of a line with two distinct endpoints

11. U.S. Customary System A system of measurement used almost exclusively in the United States

12. Perimeter The distance around a closed, flat shape

13. Counting Numbers The numbers used to count; the members of the set (1,2,3,4,5…)

14. Negative Numbers Numbers less than zero

15. Number Line A line for representing and graphing numbers. Each point on the line corresponds to a number

16. Whole Numbers The members of the set (0,1,2,3,4…)

17. Celsius scale A scale used on some thermometers to measure temperature

18. Even Numbers Numbers that can be divided by 2 without a remainder; members of the set (-4,-2,0,2,4)

19. Fahrenheit Scale A scale used on some thermometers to measure temperature

20. Odd Numbers Numbers that have a remainder of 1 when divided by 2; members of the set (-3,-1,1,3)

21. Scale A display of numbers with an indicator to show the value of a certain measure

22. Sequence A list of numbers arranged according to a certain rule

23. Term Number in a sequence

24. Closed-Option Survey A survey in which the possible responses are limited

25. Histogram A method of displaying a range of data. A histogram is a special type of bar graph that displays data in intervals of equal size with no space between them.

26. Open-Option Survey A survey that does not limit the possible responses

27. Survey A method of collecting data about a particular population

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