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40 Cards in this Set
- Front
- Back
Parallel Lines |
two lines that are always the same distance apart and never touch |
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Perpendicular Lines |
two lines that intersect at right angles |
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Right Angle |
an angle that is equal to 90 degrees |
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Perimeter |
the distance around a shape (add up all the sides) |
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Hexagon |
6 sided polygon |
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Pentagon |
5 sided polygon |
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Parallelogram |
a quadrilateral with opposite sides being parallel and equal in length |
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Rounding |
Changing the value of a number to make it easier to write and solve (Find your place, look next door, 5 or higher add one more) |
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Fraction |
A part of a whole or one (for example 4/6) |
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Trapezoid |
A quadrangle with one pair of parallel lines |
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Pictograph |
a graph that uses pictures or symbols to show numbers |
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Line Plot |
Uses x's to show the amount on a number line |
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Acute Angle |
An angle that is less than 90 degrees |
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Obtuse Angle |
An angle greater than 90 degrees and less than 180 degrees |
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Fact Family |
A set or group of facts that go together 35 / 7 = 5 |
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Estimate |
Use rounding to find a quick answer that is close to the exact answer (for example: 11 x 29 is close to 10 X 30, which equals 300) |
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Numerator |
The number above the line in a fraction and it tells you how many equal parts you have. |
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Denominator |
The number below the line in a fraction and it tells you how many equal parts it takes to make ONE or a WHOLE. |
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Straight Angle |
An angle that measures exactly 180 degrees |
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Clockwise |
Turning the same direction as the hands on a clock |
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Counterclockwise |
Turning the opposite direction as the hands on a clock |
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Congruent |
Having the EXACT same Shape and Size (rotation, translation or reflection do not change congruency) |
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Number Sentence or Equation |
Must have NUMBERS and OPERATION SYMBOLS: |
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Rotation |
To turn or spin in a clockwise or counterclockwise direction |
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Translation |
To just move or slide in one direction |
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Reflection |
The flipping of a shape over a line of reflection to make a mirror image |
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Equivalent Fractions |
Fractions that are the SAME value or amount |
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Mixed Number |
A number that has BOTH a whole number and a fraction |
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Improper Fraction |
A fraction that has a Numerator that is equal to or bigger than the Denominator |
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Area of a Rectangle or Parallelogram |
The space inside a shape or polygon. It is measured in square units. Base x Height = Area |
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Area of a Triangle |
The space inside a shape or polygon. It is measured in square units. (Base x Height) / 2 = Area |
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Rhombus |
A parallelogram with all sides equal in length (it can be a square) |
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Acute Triangle |
A Triangle with all Acute angles |
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Right Triangle |
A Triangle with one Right angle and two Acute angles |
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Obtuse Triangle |
A Triangle with one Obtuse angle and two Acute angles |
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Tenths |
Equal to 1/10 of One Whole (Think of dimes) |
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Hundredths |
Equal to 1/100 of One Whole (Think of pennies) |
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Venn Diagram |
Uses circles to show how things are alike and different (compare/contrast) |
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Timeline |
A line that shows dates in order - the more years between dates, the bigger the space |
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Symmetry |
A shape that has identical halves |