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MATH in 2nd Gr
Fractions, Shapes, and Concepts
| Question | Answer |
|---|---|
| numerator | the top number in a fraction; tells how many are shaded |
| denominator | the bottom number in a fraction; tells how many (in all) |
| fraction | A number that names part of a whole or a part of a group |
| set (group) | a whole unit that can be divided into parts, which are fractions of the whole |
| whole | the complete thing; all of the parts |
| half | 1 out of 2 parts |
| equal parts | parts that are divided and are the same |
| plane shapes | shapes that have no thickness |
| square | a rectangle with 4 sides of equal length |
| rectangle | a closed plane shape with 4 sides and 4 right angles |
| triangle | a closed plane shape with 3 sides and 3 angles |
| hexagon | a closed plane shape with 6 sides and 6 angles |
| trapezoid | a 4-sided plane shape with 2 sides parallel and 2 sides not parallel |
| parallel | like train tracks; the lines never touch or cross |
| pentagon | a 5-sided plane shape |
| parallelogram | a 4-sided plane shape with opposite sides that are parallel and equal in length |
| side | straight part of a shape |
| angle | the place where two or more edges meet |
| right angle | a special angle that forms a square |
| vertex | the place where 2 or more edges meet (starts with "v") |
| quadrilateral | name for all shapes with 4 sides |
| acute angle | an angle that is less than a right angle |
| obtuse angle | an angle that is greater than a right angle |
| solid shapes | 3-dimensional shapes (have width, length, height) |
| rectangular prism | 3-d shape with 6 rectangular faces and 12 edges |
| sphere | 3-d shape with 0 flat faces |
| cone | 3-d shape with a flat round base |
| cylinder | 3-d shape with circle faces at each end |
| cube | 3-d shape with 6 square faces and 12 edges |
| face | flat surface of a 3-d shape |
| edge | line segment formed where 2 faces of a 3-d shape meet |
Created by:
cbradham
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