Fifth and Sixth Grade Vocabulary Pages with Definitions and Sentences 5th and 6th Grade Vocabulary Pages

5th and 6th Grade Vocabulary Pages Index

Math Terms for Puzzles

  1. Zero                Zero divided by two

  2. Undefined       Two divided by zero

  3. Pi                    3.14

  4. Radius            A line from the center of a circle to the outside edge

  5. Diameter         A line across the center of a circle

  6. Chord             A line across a circle but not through its center

  7. Tangent           A line that touches the outside edge of a circle

  8. Radius             Half a diameter

  9. Diameter          Twice the radius

  10. Hypotenuse      The long side of a right triangle

  11. Right                A triangle with a 90 degree angle

  12. Circle               A round form having 360 degrees

  13. Rectangle         A four sided form with right angles that total 360 degrees

  14. Square             A rectangle with all sides of the same length

  15. Parallelogram   A four sided figure with opposite sides parallel

  16. Quadrilateral    A four sided figure

  17. Quad               Latin for the word four

  18. Lateral             Latin for the word side

  19. Angle               The arc created when two rays leave the same point

  20. Ray                  A line leaving a point

  21. Point                A specific or finite spot

  22. Line                 A single ray that may or may not have a definite end

  23. Segment           A distinct or specific part of a line or ray

  24. Intersection      The point where two lines cross

  25. Parallel             Lines that run side by side and never intersect or cross

  26. Four                 The number of angles created when two lines intersect

  27. Pythagoras       Greek mathematician

  28. Theorem           Law

  29. Law                 Theorem

  30. Prism               A form that has length, width, and depth (3 dimensions) or volume

  31. Surface            A form that has 2 dimensions and an area but no volume

  32. Sphere             A ball-like form

  33. Ellipse              An egg shaped form similar to a circle

  34. Oval                An egg shaped form like a stretched circle

  35. Horizontal        The "X" axis (a line from left to right)

  36. Vertical            The "Y" axis (A line from bottom to top)

  37. Origin              Where the "X" and "Y" lines cross (the point where a horizontal and vertical line cross or intersect)

  38. Coordinate       The point where "X" and "Y" intersect

  39. Circumference  The distance around a circle

  40. Volume            How much a shape will hold (in 3 dimensions)

  41. Flat                  Area

  42. Deep               Volume

  43. Area                2 dimensions

  44. Volume            3 dimensions

  45. Dimension        A measurement

  46. Length             How long a thing is

  47. Width              How wide a thing is ("X")

  48. Height              How tall a thing is ("Y")

  49. Quadrant          90 degrees

  50. Unit                 Kind of circle we love

  51. Pi                    Magic number for circles and spheres

  52. One                 Meaning of "unit"

  53. Area                In a circle - Pi times the radius squared

  54. Volume            In a sphere - Four-thirds Pi times the radius cubed

  55. Circumference  In a circle - Pi times the diameter