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8thGradeMathVocab
TAKS math vocabulary for 8th grade
Question | Answer |
---|---|
Acute angle | An angle measuring more than zero degrees but less than 90 degrees. |
Annual | Once a year |
Approximate | Not exact, but close |
Arithmetic sequence | Set of numbers where the same amount is added each time |
Attached | Connected to |
Bar graph | Graph that uses bars to make comparisons |
Base | A side of a 2-dimensional shape or a face of a 3-dimensional solid |
Based on experimental results | Comes from acting it out |
Based on the trend | Comes from looking at the general direction of past events |
Best approximation | Closest to the exact answer |
Best estimate | Closest to the exact answer |
Best illustrated | The best example |
Box and whisker plot | Graph that shows the median, quartiles and extremes of data |
Calculate | Find the value |
Capacity | How much a container can hold; volume |
Circular | In the shape of a circle |
Circle graph | Graph that compares parts to the whole |
Circumference | The distance around a circle; the perimeter of a circle |
Classify | Sort objects into groups based on one or more characteristics |
Commission | An amount of money paid based on the work done (ex.the more sold, the more earned) |
Complementary angles | Two angles whose sum equals 90 degrees |
Conclusions | Decision based on reasoning |
Congruent | Having the same size and shape |
Consecutive | Numbers that follow each other in order |
Constant | Number that doesn’t change |
Constant rate | Having a consistent amount of change |
Container | An object that can hold something |
Continuously | Without stopping |
Coordinates | A pair of numbers that give the location of a point on the graph |
Coordinate plane | A 2-dimensional system of intersecting lines used to graph points |
Correct place value | The right value for a digits placement in the number |
Corresponding sides | Sides in the same position on congruent or similar shapes |
Cube | A 3-dimensional solid shaped like a box, where all faces are squares |
Cubic unit | A unit for volume |
Cylinder | A solid figure with two congruent and parallel circular bases |
Data | A collection of numbers or measurements |
Data table | An arrangement of numbers or measurements in rows and columns |
Demonstrate | To show how something works or why it is true |
Dependent events | Events in which the outcome of the 1st event affects the outcome of the 2nd event |
Describe | Give the specific characteristics or a figure or situation |
Diagonal | Line segment joining 2 corners that are not next to each other on any polygon |
Dilation | Proportional shrinking or enlarging of a figure |
Dimensions | Measurements of a shape or solid (ex. length, width, and height) |
Displays | verb: shows, noun: graphic representation |
Distance | How far between 2 points |
Double | To multiply by 2 |
Edge | Line that connects 2 faces |
Enlarge | To make bigger |
Equal | The same |
Equal chance | The probability is mathematically the same |
Equation | A mathematical sentence that uses an equal sign |
Equivalent | The same |
Estimate | A rough approximation or calculation |
Evaluate | To find the value of |
Exclude | Leave out |
Experiment | Act it out |
Expression | A combination of numbers and variables connected by one or more operations |
Fair number cube | Dice |
Formula | An equation with variables used for certain calculations |
Fraction | Ratio of 2 numbers where denominator is not 0. |
Generate | Come up with or produce |
Histogram | A bar graph showing data in groups/ranges |
Hypotenuse | The longest side of a right triangle; the side opposite the right angle in a right triangle |
Inaccurate | Wrong |
Independent events | Events in which the outcome of the 1st event doesn’t affect the outcome of the 2nd event |
Interior angles | Angles inside a shape |
Irrational number | Number whose decimal form is non-ending and non-repeating |
Irregular figure | A shape where not all sides are equal |
Lateral surface area | Area of all the faces of a 3-dimensional solid except the bases |
Line graph | Graph to show change over time |
Line plot | Diagram showing frequency of data on a number line |
Mean | The sum of a group of numbers divided by the number of numbers, also known as average |
Measures of central tendency | Mean, median, mode |
Median | A value found by ordering a group of data form least to greatest and choosing the middle value of the group |
Mode | In a group of values, the value that occurs most often |
Most accurate representation | The most correct example |
Most reliable results | The most trusted information to come out of an experiment |
Multiples | Numbers that can all be evenly divided by the original number |
Negative number | Number less than 0 |
Net | A flat pattern that can be cut out and folded up to make a 3-dimensional solid |
Nth position | Any position in a sequence |
Nth term | Any term in a sequence |
Origin | The point (0,0) where the x and y axis intersect |
Overall decrease | Value went down over time |
Parallel | Go in exactly the same direction and will never meet |
Percent | The ratio of a number to 100 (per one hundred); the symbol % |
Perimeter | The distance around a figure |
Pi | It has an approximate value of 3.14; symbol is ¶ |
Positive number | Number greater than 0 |
Positive trend | Moving in an upward direction over time |
Potential | The possibility of something happening |
Prism | A 3-dimensional solid figure that has two congruent, parallel polygons as bases and parallelogram sides. |
Procedure | An official way of doing something |
Product | The result of multiplying two or more numbers |
Proportion | An equation stating that two ratios are equal |
Pyramid | A 3-dimensional solid that has triangular faces and a polygon base |
Pythagorean theorem | Formula to find lengths of sides of a right triangle |
Quadrant | One of four regions formed by the intersection of the x and y axes on a coordinate graph. |
Quadrilateral | A polygon that has four sides |
Quotient | The result of dividing one number by another, the solution to a division problem |
Random | Happening by chance |
Range | The difference between the least and greatest values in a set of numbers |
Rational number | A number that can be expressed as a fraction |
Ratio | A comparison of the values of two numbers |
Recognize | To know |
Record | verb: To write down |
Rectangle | A parallelogram with four right angles |
Rectangular | In the shape of a rectangle |
Reduce | To get smaller |
Reflection | A mirror image of a figure shown over a line of reflection |
Region | An area |
Represent | To stand for |
Revenue | Money brought in by a company |
Right angle | An angle measuring 90º |
Rotation | A complete turn |
Rule | A way of determining terms in pattern or sequence |
Salary | A fixed regular amount of money made by an employee |
Sampling methods | Ways to get information about a population (ex. take surveys) |
Scale factor | Ratio between similar figures; how many times larger or smaller a shape is than the original |
Scatter plot | Graph comparing 2 sets of data to see the relationship |
Scientific notation | Way to express very large or small numbers as the product of a number and a power of 10 |
Sequence | A pattern of numbers following an order or rule |
Set | Group of numbers |
Similar | Same shape, different size |
Solid figure | 3-dimensional shape |
Solution | Answer to a problem |
Sphere | 3-dimensional shape like a round ball |
Square unit | A unit of measuring area |
Statistical measure | Mean, median, mode |
Stem and leaf plot | Arrangement of numbers that separate digits into columns |
Strategy | A plan of action to achieve a goal |
Surface area | The area of the outside faces of a 3-dimensional solid |
Survey | A gathering of data or opinions |
Table | An arrangement of data in rows and columns |
Three-dimensional | Having length, width and height |
Top, front, side view | Different perspectives of a 3-dimensional solid |
Total surface area | The area of all the faces of the outside of a 3-dimensional solid |
Transformation | Change the shape, position or size of an object |
Translation | To slide a figure along a straight line |
Trapezoid | A quadrilateral with only one pair of parallel sides |
Trend | The general direction something takes |
Triangle | A 3 sided shape |
Twice | To multiply by 2 |
Two dimensional | A flat shape with only 2 measurements, length and width |
Valid | Makes sense based on the information |
Venn diagram | A diagram used to represent sets and relationships between sets |
Vertex | Corner |
Volume | The amount of space inside a container; how much something could hold |
X-axis | The horizontal number line of a coordinate graph |
X-coordinate | The value of the x-axis used to locate a point on the graph;the first value in an ordered pair |
Y-axis | The vertical number line of a coordinate graph |
Y-coordinate | The value of the y-axis used to locate a point on the graph; the 2nd value in an ordered pair |
Best represents | Best shows or matches |
Unit rate | A ratio that shows the cost per one unit of measure |