Geometry, Graph, Group!

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View the definitions below for words that start with G.

There are many prefixes and suffixes that can be used with words like gram. Your kids will get a lot more learning for your time spent teaching if you take some time teaching the affixes with normal Math words.

Geo is a prefix that applies to many words on this page. Graph is an important word when studying Math vocabulary, too.

**Gaussian Curve** - a normal curve.

**Generator** - the bent line-segment or figure that replaces the initiator at each iteration of a fractal.

**Geoboard** - a flat board into which nails have been driven in a regular rectangular pattern. These nails represent the lattice points in the plane.

**Geodesic** - the arc on a surface of shortest length joining two given points.

**Geodesic Dome** - a spherical structure made up of triangles.

**Geodesy** - a branch of mathematics dealing with the shape, size, and curvature of the Earth.

**Geometric Mean** - the geometric mean of n numbers is the nth root of the product of the numbers.

**Geometric Progression** - a series of numbers which increase or decrease by a common multiplier.

**Geometric Sequence** - a set where each element is a multiple of the previous element.

**Geometric Series** - a series in which the ratio of each term to the preceding term is a given constant.

**Geometric Solid** - the bounding surface of a 3-dimensional portion of space.

**Geometry** - the branch of mathematics that deals with the nature of space and the size, shape, and other properties of figures as well as the transformations that preserve these properties.

**Gergonne Point** - in a triangle, the lines from the vertices to the points of contact of the opposite sides with the inscribed circle meet in a point called the Gergonne point.

**Golden Ratio** - (1+Sqrt[5])/2.

**Golden Rectangle** - a rectangle whose sides are in the golden ratio.

**Graceful Graph** - A graph is said to be graceful if you can number the n vertices with the integers from 1 to n and then label each edge with the difference between the numbers at the vertices, in such a way that each edge receives a different label.

**Grad (or grade)** - 1/100th of a right angle

**Gram** - a unit of weight in the metric system.

**Graph** - a graph is a set of points (called vertices) and a set of lines (called edges) joining these vertices.

**Graph** - a visual representation of data that displays the relationship among variables, usually cast along x and y axes. See our printable graph paper here.

**Graph of the Function F** - the set of all the points on the coordinate plane of the form (x, f(x)) with x in the domain of f.

**Great Circle** - a circle on the surface of a sphere whose center is the center of the sphere.

**Greater Than** - having a larger value than.

**Greatest Common Divisor** - the greatest common divisor of a sequence of integers, is the largest integer that divides each of them exactly.

**Greatest Common Factor** - same as greatest common divisor.

**Greatest Lower Bound** - the greatest lower bound of a set of real numbers, is the largest real number that is smaller than each of the numbers in the set.

**Group** - a mathematical system consisting of elements from a set G and a binary operation * such that x*y is a member of G whenever x and y are (x*y)*z=x*(y*z) for all x, y, and z there is an identity element e such that e*x=x*e=e for all x each member x in G has an inverse element y such that x*y=y*x=e

N * O * P * Q * R * S * T * U * V * W * X * Y * Z

I keep these definitions as a glossary in my binder.

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