Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

Normal Size Small Size show me how

Normal Size Small Size show me how

# 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