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irregular polygons

irregular polygons. Polygons with sides of different lengths. inscribed polygon. A polygon, all of whose vertices are points on a circle or other figure. isosceles triangle. A triangle in which two of the three sides are the same length. juxtapose. 5n means 5 * n ab means a * b.

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irregular polygons

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  1. irregular polygons Polygons with sides of different lengths.

  2. inscribed polygon A polygon, all of whose vertices are points on a circle or other figure.

  3. isosceles triangle A triangle in which two of the three sides are the same length.

  4. juxtapose 5n means 5 * n ab means a * b To place side by side in an expression to indicate multiplication.

  5. key sequence 14 [+] 37 [=] 51 A set of instructions for performing a particular calculation or function with a calculator.

  6. kilogram (kg) Measures the unit of mass.

  7. kilometer (km) 1 kilometer is equal to 11 football fields A unit equal to 1,000 meters.

  8. kite A quadrilateral with exactly two pairs of adjacent congruent sides.

  9. kite A quadrilateral with two pairs of adjacent sides that are the same length.

  10. label 24 children 27 ducks 1 kg 3 o’clock 30 cents Descriptive word or phrase used to put numbers in context.

  11. landmark Numbers that are familiar and can be used to solve other unfamiliar problems.

  12. landmark median mode maximum minimum range A measure of data.

  13. least common denominator The least common multiple of the denominators of every fraction in given collection of fractions.

  14. least common multiple The smallest that is a multiple of two or more numbers.

  15. leg of a right triangle A side of a right triangle that is not the hypotenuse.

  16. length The longer side of a rectangle or a rectangular object.

  17. line A straight path that extends infinitely in opposite directions.

  18. line graph(broken-line graph) A graph in which points are connected by a line or line segment to represent data.

  19. line of reflection(mirror line) A line that divides a figure into tow halves that re mirror images.

  20. line of symmetry A line that divides a figure into two halves that are mirror images.

  21. line of symmetry A line through a symmetric figure. Each point is one of the halves of the figure is the same distance from this line as the corresponding point in the other half.

  22. line symmetry A figure has line symmetry if a line can be drawn through the figure that divides into two parts so that both parts look exactly alike, but facing in opposite directions.

  23. line plot X X X X X X X X X X X X Number of children A sketch of data in which checkmarks, X’s or stick-on notes above a number line show the frequency of each value. 0 1 2 3 4 5

  24. line segment A straight path joining two points called endpoints of the line segment.

  25. liter (L) A unit of capacity equal to 1,000 milliliters. A liter is larger than a quart.

  26. long The base-10 block consisting of 10 cm cubes.

  27. map legend A diagram that explains the symbols, markings and colors on a map. Also called a map key.

  28. map scale A rate that compares the distance between two locations on a map with the actual distance between them.

  29. Math Boxes Review problems and practice skills.

  30. Math Journal Student books used to practice and learn skills.

  31. Math Message Math Message 1.1 We are going to mark school days on a number line. Where would you mark today on the number line? Actives to start at the beginning of the math lesson. 1.1

  32. mathematics A study of relationships among numbers, shapes, systems, and patterns. It is used to count, measure things, to discover similarities and differences between them, to solve problems, and to learn about and organize the world.

  33. maximum {3, 2, 8, 1, 9, 2} is 9 The largest amount; the greatest number in a set of data.

  34. measurement unit The reference unit used when measuring length, weight, capacity, time or temperature.

  35. mean 2, 4, 5, 9, 10 = 30 30 ÷ 5 = 6 The mean is 6 A typical or middle value for a set of numbers. It is the average.

  36. median 2, 35, 65, 77, 80, 100, 205 The middle value in a set of data when the data is listed in order.

  37. memory Mechanical or electronic storage of information for later recall.

  38. memory keys Keys to manage a calculator’s memory.

  39. memory key The [M+], [M-], and [MRC] calculator keys. The [M+] key is used to add a number to the number stored in the calculator's memory; the [M-] key is used to subtract a number from the number in memory. The [MRC] key, pressed once, displays the number currently stored in memory; when the key is pressed twice, the calculator's memory is cleared.

  40. mental arithmetic 2X3=6 2 + 3 = 5 Math done in their own head.

  41. Mental Math and Reflexes Oral lessons to strength children's number sense and to review and advance essential basic skills.

  42. meridian bar A device on a globe that shows degrees north and south of the equator.

  43. meter (m) Measurement of length. 10 decimeters 100 centimeters 1000 millimeters.

  44. metric system Measurement based on base-ten system.

  45. metric system A measurement system based on the base 10 numeration system and used in most countries of the world.

  46. middle value 2, 35, 65, 77, 80, 100, 205 The number in the middle when a set of data is organized in sequential order.

  47. midpoint A point halfway between two points.

  48. mile (mi) 1 mile = 22 football fields Unit of length.5,280 feet 1,760 yards 1,509 meters

  49. milliliter (mL) Metric unit of capacity. 1/1000 of a liter.

  50. millimeter (mm) Metric unit of length. 1/10 of a centimeter.

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