irregular polygons

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 oclock
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
0 1 2 3 4 5

• A sketch of data in which checkmarks, Xs or
  stick-on notes above a number line show the
  frequency of each value.

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 calculators 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
2X36
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.

51
minimum
3, 2, 8, 1, 9, 2 is 1

• The smallest number in a set.

52
minuend

• The number you start with when you subtract.

53
mixed number

• A number that has a whole number part and a
  fraction part.

54
mode
3,4,4,4,5,5,6
mode

• The value that occurs most often in a set of data.

55
multiples
5s 5, 10, 15, 20
10s 30, 40, 50, 60
25s 75, 100, 125

• Repeated groups of the same amount.

56
multiplication
7 X 2 14

• The operation used to find the total number in
  several equal groups.

57
multiplication fact
2 x 3 6
9 x 3 27
8 x 8 64
4 x 0 0

• The product of two 1-digit numbers.

58
multiplicative inverses

• Two numbers whose products is 1. Multiplicative
  inverses are also called reciprocals of each
  other.

59
multiplications/division diagrams
4 x 3 12

• The diagram has a number of groups, a number in
  each group and a total number.

60
name-collection box

• A boxlike diagram tagged with a given number and
  used for writing the names for that number.

61
negative number

• A number less than 0a number to the left of the
  0 on a horizontal number line.

62
negative rational numbers
-4 -0.333 -4/5

• A number less than 0 that can be written as a
  fraction or terminating or repeating decimal.

63
n-gon

• All other polygons can be called n-gons. You can
  think of n-gons as meaning "any" number of sides,
  or whatever number of sides your current polygon
  has.

64
net score
In the game of Factor Captor, your first move is
29, your opponent's move is 1. You get your net
score, 28, by subtracting 1 from 29.

• The final score of a turn or game after any
  operations have been done.

65
nonagon

• A polygon that has nine sides and nine angles,
  more properly (but less often!) called an
  enneagon. A regular nonagon has nine equal sides
  and nine equal angles.

66
number family
8
15
,-
x,
5
3
3
5
3 5 85 3 88 - 3 58 - 5 3
3 x 5 155 x 3 1515 3 515 5 3

• A triplet of numbers with two addends and their
  sum or two factors and their products.

67
number-grid

• A table with consecutive numbers arranged in rows
  of ten.

68
number-grid puzzle

• A part of the number grid with numbers missing.

69
number line

• A line on which points correspond to numbers in
  order.

70
number model
Sara has three round blocks And 2 square blocks.
How many blocks in all?
number model
325 blocks

• A number sentence that models or fits a situation.

71
number model
Sara has three round blocks And 2 square blocks.
How many blocks in all?
number model
325 blocks

• A number sentence that shows how the parts of a
  number story are related.

72
number scroll

• Number-grid pages taped together.

73
number scroll

• Multiple number-grid pages taped together.

74
number sequence

• A list of numbers often generated by some rule.

75
number sentence
2 3 5
23 X 2 gt 20
894 lt 1234
(10 - 4) X 5 30

• A sentence that is made up of numerals and a
  relation symbol (,lt,gt)

76
number story

• A story that can be solved using one or more math
  operations.

77
numerator
numerator
1 4

• The number written above the line in a fraction.

78
obtuse angle

• An angle greater than 90 degrees and less than
  180 degrees.

79
octagon
1
8
2
3
7
6
4
5

• An 8-sided polygon.

80
odd number
odd numbers
1 3 5 7 9 11
0 2 4 6 8 1012
even numbers

• A number that can not be divided by 2. It has
• 1, 3, 5, 7, or 9 in the ones place.

81
ONE

• A way of showing the unit whole in part-whole
  fractions.

82
1-facts
9 1
7 1
3 1
4 1
2 1
0 1
5 1
1 1
6 1

• The sum of two 1-digit numbers where one of the
  numbers is one.

83
operation
2 5 7
2 X 1 2
29 8 11
12 2 6

• An action preformed on one or two numbers
  producing a single number result.

84
operation

• Addition, subtraction, multiplication, division,
  raising to a power, and taking a root are
  mathematical operations.

85
opposite of a number

• A number that is the same distance from zero on
  the number line as the given number but on the
  opposite side of the zero.

86
ordered number pair

• Two numbers in specific order used to locate a
  point on a coordinate grid.

87
orders of magnitude

• Powers of ten.

88
orders of operation

• Rules that tell the order in which operations
  should be done.

89
ordinal numbers

• A number used to express position or order in a
  series.

90
origin

• The point where the
• x-axis and y-axis intersect on a coordinate grid.

91
ounce (oz)
10 pennies 1 oz
160 pennies 1 pound

• A standard unit of weight equal to 1/16 of a
  pound.

92
outcome
Head and tails are two outcomes from flipping a
coin.

• A possible result of a random process.

93
pan balance

• A device used to weigh objects or compare weight.

94
parabola

• The curve formed by the surface of a right
  circular cone when it is sliced by a plane that
  is parallel to a side of the one.

95
parabola

• A parabola can also be described as the curve
  from a line and a point that is not on the line.

96
parallel

• Lines, rays, line segments, or planes that are
  equal distance at all points, no matter how far
  never meeting.

97
parallelogram

• A quadrilateral that has two pairs of parallel
  sides and opposite sides that are congruent.

98
part-and-total diagram

• A diagram used with problems in with two or more
  quantities are combined to from a total quantity.

99
part-to-part ratio
Part to part compares the red circles to the
yellow circles. Part to part ratio is 25

• A ration that compares a part of the whole to
  another part of the whole.

100
part-to-part whole ratio
Part to total compares the red circles to the
total amount of circles, 27 or you can compare
the yellow circles to the total amount of
circles, 57

• A ratio that compares a part of the whole to the
  whole.