Words for students from kindergarten to grade 8, each grade has 4 lists: art, math, science, and social. They are essential vocabulary for elementary academic classes.

**Grade 4: Word List - Math**

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Grade and Subject |

area

plane surface, as of the floor of a room; open space in a building; the enclosed space; extent; scope; range

bar graph a chart with bars whose lengths are proportional to quantities

decimal numbered or proceeding by tens; based on ten; a proper fraction whose denominator is a power of 10

denominator the divisor of a fraction

distributive property a special way in which multiplication is applied to addition of two or more numbers in which each term inside a set of parentheses can be multiplied by a factor outside the parentheses

fifths one of five equal parts of a whole

hundredths one of a hundred equal parts of a whole; called also percent

line graph a graph in which a series of connected straight lines connect points, each of which represents the value of a particular variable

median the value below which 50% of the cases fall

mode prevailing style; manner; way of doing something; fashion or style

numerator the dividend of a fraction

parallel make or place something to another's side; of or relating to multiple operations at same time; not intersecting

perimeter outer boundary length; closed curve bounding a plane area

perpendicular vertical; upright; intersecting at or forming right angles; extremely steep

proportion percentage; quotient obtained when a part is divided by the whole; part considered in relation to the whole

quadrant a quarter of the circumference of a circle; any of the four areas into which a plane is divided by two orthogonal coordinate axes

range limits within which something can be effective; variety of different things or activities

rational number an integer or a fraction

reflection image of something as reflected by mirror; remark expressing careful consideration

rotation revolution; act of rotating as if on an axis

tenths one of ten equal parts of a whole

transformation change in form , appearance, nature, disposition, condition, or the like

translation transformation in which the origin of the coordinate system is moved to another position but the direction of each axis remains the same

twelfths one of twelve equal parts of a whole