Question | Answer |
---|---|

2 pairs of parallel sides | parallelogram |

1 pair of parallel sides | trapezoid |

0 parallel sides | trapezium |

a parallelogram with 4 congruent sides | rhombus |

a parallelogram with 4 congruent angles | rectangle |

## Number and Operations- Fractions

Term | Definition |
---|---|

fraction | A fraction is a part of a whole. |

equivalent fractions | Fractions whose numerators and denominators are in the same ratio respectively. All equivalent fractions can be reduced to the same simple fraction. |

addition | Join or put together two or more quantities. |

sum | The total amount after addition of numbers. |

subtraction | To take one number away from another. |

difference | The result of subtracting one number from another |

unlike denominator | Two fractions where denominators are not identical or similar. |

denominator | The divisor of a fraction. The "bottom" number in a fraction that shows how many equal parts the item is divided into. |

numerator | The top number in a fraction. |

benchmark fraction | Common fractions that you can judge other numbers against. |

estimate | Approximate calculation or round the number to the nearest place value. |

mixed numbers | A number that is made up of a whole number and a fraction. |

multiplication | The basic idea of multiplication is repeated addition. |

division | The opposite operation of multiplication that separates items or values into equal parts, with or without a remainder |

product | The answer when two or more numbers are multiplied together. |

quotient | The answer after you divide one number by another
dividend ? divisor = quotient |

partition | Divide a whole into equal parts. |

equal parts | Division resulting in identical parts. Having the same portion, division, piece, or segment of a whole. |

factor | Factors are numbers you can multiply together to get another number:
Example: 2 and 3 are factors of 6, because 2 ? 3 = 6. |

unit fraction | A fraction where the top number (the "numerator") is 1 |

area | The size of a surface.
The amount of space inside the boundary of a flat (2-dimensional) object such as a triangle or circle. |

side lengths | The measure of the segment joining two adjacent vertices in a figure. |

scaling | Act of measuring or arranging or adjusting according to a scale. |

## Probability Vocabulary

Term | Definition |
---|---|

Outcome | A possible result of a situation or experiment. |

Event | One or more outcomes together |

Sample Space | The set of all possible outcomes |

Experimental Probability | The likelihood of an event occurring based on the results of an experiment. |

Theoretical Probability | The likelihood of an event occurring based only on the situation, not on the results of an experiment. |

Complement of an Event | All possible outcomes that are not part of an event. |

Frequency Table | A data display that shows how often an item appears in a category. |

Relative Frequency | The ratio of a frequency over the total frequency. |

Set | A collection of elements where order doesn't matter. |

Subset | If all elements of set A are in set B, then set A is called this. |

Venn Diagram | A visual representation of sets and subsets |

Two-way Frequency Table | This displays data in two different sets of categories. |

Conditional Probability | The likelihood that an event will occur, given that another event has already occurred. |

Union | This includes all elements in one set or the other. |

Intersection | This includes only the elements in common between one set and another. |

Compound Event | An event that is made up of two or more events. |

Independent Events | Events that do not affect how each other occurs. |

Dependent Events | Events where one affects how the other occurs. |

Mutually Exclusive Events | Events that cannot happen at the same time. |

Overlapping Events | Events that can happen at the same time. |

Tree Diagram | A diagram that has a branching structure resembling a tree. |

Permutation | A selection of items where order matters. |

Combination | A selection of items where order doesn't matter. |

Geometric Probability | The likelihood that a random point will be on a segment or region in a plane. |

## 4th grade geometry

Question | Answer |
---|---|

A closed flat shape with straight sides. | Polygon |

Any four sided polygon. | Quadrilateral |

A closed, curved shape in which all points on the shape are the same distance from its center. | Circle |

A polygon with ten sides. | decagon |

A triangle in which all sides are the same length and all angles are the same measure. | Equilateral triangle |

A polygon with six sides | Hexagon |

A triangle with at least two sides of equal length and two angles of equal measure. | Isosceles |

A polygon with eight sides | octagon |

A polygon with five sides | pentagon |

A quadrilateral that has two pairs of parallel sides | Parallelogram |

A quadrilateral that has four right angles | Rectangle |

A polygon in which all sides have equal lengths and all angles have equal measures. | Regular Polygon |

A triangle whose largest angle measures 90 degrees. | Right Triangle |

A triangle with three sides of different lengths | Scalene triangle |

## Revision of the basics

Question | Answer |
---|---|

The denominator is | the number at the bottom of the fraction ( d=down) |

The numerator is | the number at the top of a fraction |

The vinculum is | the line between the top ( numerator) and bottom ( denominator) |

A mixed number is | made up of a whole number and a fraction = 1 & 1/2 |

A proper fraction is | where the smaller number is on the top |

An improper fraction is | where the larger number is on the top |

A denominator tells us | how many parts it is evenly broken up into |

An equivalent fraction is | a fraction that has the same value but is made up of different sizes |

A simplified fraction is | a fraction in it's easiest, smallest size to use = 8/16 = 1/2, 6/9 = 2/3 |

Rule: what you do to the top- | do to the bottom |

Rule: what you do to the bottom- | do to the top |

In addition and subtraction of fractions the denominators | must always be the same |

Multiplying fractions are easy- the rule is | top by top, bottom by bottom |

How do we make denominators the same? | times them by each other- or- see what number they will both go into |

What's a multiple? | A number that a number can be multiplied into |

What's a factor? | A number that goes into another number evenly |

what is the opposite (or inverse) of the fraction 7/8? | 8/7 |

## Terms from Unit 7(Sections 7.1-7.3 & 7.5)

Question | Answer |
---|---|

__ are polygons that have corresponding, proportional sides and corresponding, congruent angles. | Similar polygons |

Two figures that have the same shape and same size are known to be __. | Congruent |

True/False: When writing the side ratios, the image goes over the preimage. | True |

__ is the original figure. | preimage |

Circle the correct term: Congruent figures are always / sometimes / never similar. | always |

A comparison of two quantities by division is called a(n) __. | ratio |

The resulting figure is called __. | image |

When two ratios are equal, it is known as a(n) __. | proportion |

The first and the last numbers in a proportion are called the __. | Extremes |

When three or more ratios are equal, it is called a(n) __. | extended proportion |

__ is a drawing where all the lengths are proportional to their corresponding actual lengths. | scale drawing |

True/False: A figure undergoes a reduction when the scale factor is greater than one. | False |

A ratio that compares each length in the scale drawing to the actual length is known as a(n) __. | Scale |

True/False: The scale factor can be negative. | False |

Circle the correct term: Translation / Rotation is known as a slide. | Translation |

Circle the correct term: Reflection / Dilation is a similar transformation. | Dilation |

## Two and three digit numbers

Question | Answer |
---|---|

46 +87 |
133 |

82 +45 |
127 |

235 +654 |
889 |

685 +303 |
988 |

789 +200 |
989 |

583 +345 |
928 |

## Math

Term | Definition |
---|---|

absolute value | It is the distance of a number from zero on a number line. |

acute angle | It is an angle that has a measure less than a right angle. |

acute triangle | It is a triangle that has three acute angles. |

addends | It is numbers that are added in an addition problem. |

addition | It is the process of finding the total number of items when two or more groups of items are joined; the opposite of subtraction |

area | It is the number of square units needed to cover |

arrangement | It is an ordering of items. |

array | It is an arrangement of objects in rows and columns. |

Associative Property of Addition | It is the property that states that when the grouping of addends is changed, the sum is the same. |

Associative Property of Multiplication | It is the property that states that the way factors are grouped does not change the product. |

average | It is a visual mean. |

axis | It is the horizontal or vertical number line used in a graph or coordinate plane. |

## Math

Term | Definition |
---|---|

bar graph | It is a graph that uses horizontal or vertical bars to display countable data. |

base | 1. It is a number used as a repeated factor 2. It is a polygon's side or solid figure's face by which the figure is measured or named |

benchmark | It is a familiar number used as a point of reference |

billion | 1,000,000,000 |

## Math

Term | Definition |
---|---|

capacity | It is a amount a container can hold. |

Celsius | It is a metric scale for measuring temperature |

centimeter | It is a unit for measuring length in the metric system |

central angle | It is the angle formed by two radii of a circle that meet at its center |

certain | It might happen. |

chord | It is a line segment with endpoints on a circle. |

circle | It is a closed figure with all points on the figure the same distance from the center point. |

circle graph | It is a graph that shows how parts of the data are related to the whole and to each other. |

circumference | It is the distance around a circle . |

combination | It is a choice in which the order of items does not matter. |

common factor | It is a number that is a factor of two or more numbers |

common multiple | It is a number that is a multiple of two or more numbers |

Commutative Property of Addition | It is the property that states that when the order of two addends is changed, the sum is the same. |

Commutative Property of Multiplication | It is the property that states that when the order of two factors is changed, the property is the same. |

compass | It is a tool used to construct circles and arcs |

compatible numbers | It has multiple numbers that are easy to compute mentally. |

compensation | It is an estimation strategy in which you change one addend to a multiple of ten and then adjust |