Maths Terms for 11-13 Yr Olds
Note: You may download the entries for this glossary here. If you wish to use this in your own Moodle course, first make a blank glossary and then follow the instructions for importing glossary entries here.
James says: "This is glossary of terms for UK KS3 Maths,[ages 11-13] taken Works quite well with a 'random glossary entry' html block on a main course page since the definitions are in a small font size.
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GEOMETRY AND MEASURES |
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DiameterThe length of any of the chords of a circle or sphere that pass through it's centre. Compare with 'chord'. | |
DifferenceThe amount by which one number or value is greater than another, obtained by subtracting the smaller from the larger. | |
DodecahedronA polyhedron with twelve faces. The faces of a regular dodecahedron are regular pentagons. A dodecahedron has 20 vertices and 30 edges. | |
Elevation1. The vertical height of a point above a base (line or plane). 2. The angle of elevation from one point A to another point B is the angle between the line AB and the horizontal line through A. | |
EnlargementA transformation of the plane in which lengths are multiplied whilst directions and angles are preserved. A centre and a positive scale factor are used to specify an enlargement. The scale factor is the ratio of the distance of any transformed point from the centre to its distance from the centre prior to the transformation. Any figure and its image under enlargement are 'similar' - having the same internal angles and ratios between the length of its sides. | |
EquilateralAn adjective describing a polygon with sides of equal length. | |
ExpressionA mathematical form expressed symbolically. Examples: 7 + 3; a2 + b2. An expression is different from an equation in that it doesn't have an equals sign =. | |
FaceIn geometry, one of the flat surfaces of a solid shape. Example: a cube has six faces. | |
FootSymbol: ft. An imperial measure of length. 1 foot = 12 inches. 3 feet = 1 yard. 1 foot is approximately 30 cm. Imperial measurements are rarely used in modern times. | |