Elementary Academic Words

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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area  Read Word
plane surface, as of the floor of a room; open space in a building; the enclosed space; extent; scope; range
bar graph  Read Word
a chart with bars whose lengths are proportional to quantities
decimal  Read Word
numbered or proceeding by tens; based on ten; a proper fraction whose denominator is a power of 10
denominator  Read Word
the divisor of a fraction
distributive property  Read Word
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  Read Word
one of five equal parts of a whole
hundredths  Read Word
one of a hundred equal parts of a whole; called also percent
line graph  Read Word
a graph in which a series of connected straight lines connect points, each of which represents the value of a particular variable
median  Read Word
the value below which 50% of the cases fall
mode  Read Word
prevailing style; manner; way of doing something; fashion or style
numerator  Read Word
the dividend of a fraction
parallel  Read Word
make or place something to another's side; of or relating to multiple operations at same time; not intersecting
perimeter  Read Word
outer boundary length; closed curve bounding a plane area
perpendicular  Read Word
vertical; upright; intersecting at or forming right angles; extremely steep
proportion  Read Word
percentage; quotient obtained when a part is divided by the whole; part considered in relation to the whole
quadrant  Read Word
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  Read Word
limits within which something can be effective; variety of different things or activities
rational number  Read Word
an integer or a fraction
reflection  Read Word
image of something as reflected by mirror; remark expressing careful consideration
rotation  Read Word
revolution; act of rotating as if on an axis
tenths  Read Word
one of ten equal parts of a whole
transformation  Read Word
change in form , appearance, nature, disposition, condition, or the like
translation  Read Word
transformation in which the origin of the coordinate system is moved to another position but the direction of each axis remains the same
twelfths  Read Word
one of twelve equal parts of a whole