7th Grade Math

Glossary/Glosario R51 Glossary/Glosario formula An equation that shows the relationship among certain quantities. function A rel ...

R52 Glossary/Glosario Glossary/Glosario histogram A type of bar graph used to display numerical data that have been organized in ...

Glossary/Glosario R53 Glossary/Glosario Kk kilogram The base unit of mass in the metric system. One kilogram equals 1,000 grams. ...

R54 Glossary/Glosario Glossary/Glosario line of reflection The line over which a figure is reflected. line of symmetry A line th ...

Glossary/Glosario R55 Glossary/Glosario monomial A number, variable, or product of a number and one or more variables. Multiplic ...

R56 Glossary/Glosario Glossary/Glosario obtuse triangle A triangle having one obtuse angle. octagon A polygon having eight sides ...

Glossary/Glosario R57 Glossary/Glosario parallelogram A quadrilateral with opposite sides parallel and opposite sides congruent. ...

R58 Glossary/Glosario Glossary/Glosario population The entire group of items or individuals from which the samples under conside ...

Glossary/Glosario R59 Glossary/Glosario quadrilateral A closed figure having four sides and four angles. quartile A value that d ...

R60 Glossary/Glosario Glossary/Glosario reflection The mirror image produced by flipping a figure over a line. y 0 x " % $ # $' ...

Glossary/Glosario R61 Glossary/Glosario rotation When a figure is rotated around a point to change the figure’s orientation with ...

R62 Glossary/Glosario Glossary/Glosario scatter plot In a scatter plot, two sets of related data are plotted as ordered pairs on ...

Glossary/Glosario R63 Glossary/Glosario slope The rate of change between any two points on a line. It is the ratio of vertical c ...

R64 Glossary/Glosario Glossary/Glosario surface area The sum of the areas of all the surfaces (faces) of a three-dimensional fig ...

Glossary/Glosario R65 Glossary/Glosario transversal The third line formed when two parallel lines are intersected. transversal t ...

R66 Glossary/Glosario Glossary/Glosario Vv variable A symbol, usually a letter, used to represent a number in mathematical expre ...

Glossary/Glosario R67 Glossary/Glosario Zz zero pair The result when one positive counter is paired with one negative counter. T ...

R68 Index Index Aa Absolute value, 76, 77–80 Accuracy, 568, 634 Activities. See Explore Lessons; Extend Lessons Addition Associa ...

Index R69 Index 535, 536, 540, 541, 559, 560, 565, 571, 572, 575, 576, 583, 584, 589, 595, 606, 607, 627, 628, 632, 636, 639, 64 ...

R70 Index Index Decimals, 128–132 annexing zeros, 8 as coefficients, 222 dividing, 10–12 by decimals, 11 by a whole number, 10 f ...