7th Grade STAAR Math Vocabulary

vertical angle

• The angles opposite each other when two lines cross. They are always equal.

• The angles formed by two parallel lines and a transversal.

• The angles that are adjacent to each other when two lines intersect.

• The angles that add up to 90 degrees when two lines cross.

Tags

CCSS.7.G.B.5

probability experiment

• An action or trial that has varying results.

• A fixed outcome that cannot change.

• A method to predict future events with certainty.

• A random event with no possible outcomes.

equally likely

• Events that have the same probability of occurring.

• Events that are impossible to occur.

• Events that occur at different rates.

• Events that are guaranteed to happen.

Tags

CCSS.7.SP.C.7A

kilometer

• A metric unit of measurement equal to 1,000 meters.

• A unit of distance equal to 100 meters.

• A unit of area equal to 1,000 square meters.

• A unit of weight equal to 1,000 grams.

Tags

CCSS.4.MD.A.1

coefficient

• A number used to multiply a variable.

• A variable that represents a constant value.

• A term that describes the degree of a polynomial.

• A function that maps inputs to outputs.

Tags

CCSS.6.EE.A.2B

total surface area

• The sum of the areas of all the surfaces of a three-dimensional object.

• The area of the base of a three-dimensional object.

• The perimeter of the base of a three-dimensional object.

• The volume of a three-dimensional object.

random

• Made, done, or happening without method or conscious decision.

• Planned and executed with precision.

• A result of careful thought and consideration.

• A predictable and systematic approach.

Tags

CCSS.RI.5.10

CCSS.RI.6.4

CCSS.RI.7.4

CCSS.RI.8.4

CCSS.RI.9-10.4

percent decrease

• A measure of how much a quantity increases, expressed as a percentage of the original amount.

• A measure of how much a quantity decreases, expressed as a percentage of the original amount.

• A measure of how much a quantity remains the same, expressed as a percentage of the original amount.

• A measure of how much a quantity fluctuates, expressed as a percentage of the original amount.

Tags

CCSS.6.RP.A.3C

d = rt

• The formula for distance, where d is distance, r is rate, and t is time.

• The formula for speed, where s is speed, d is distance, and t is time.

• The formula for acceleration, where a is acceleration, v is velocity, and t is time.

• The formula for force, where F is force, m is mass, and a is acceleration.

Tags

CCSS.HSA.CED.A.4

fluid ounce

• A unit of weight typically used for measuring solids.

• A unit of volume typically used for measuring liquids.

• A unit of distance used in measuring length.

• A unit of temperature used for measuring heat.