Grade 5 • Mathematics • Geometry

Grade 5 Mathematics

Geometry

Geometry Vocabulary

  • Ordered Pair: a pair of numbers where order is important, for example, (4,6) is different to (6,4); often used to indicate on a coordinate plane, graph or map
  • Coordinate Plane: a plane containing two perpendicular axes (x and y) intersecting at a point called the origin (0,0)
  • Two-Dimensional: a figure that can be measured in two directions, such as length and width
  • Angles: the figure formed when two rays or line segments share the same endpoint
  • Point: an exact position or location
  • Line: a straight path extending in both directions with no endpoints
  • Line Segment: a part of a line that includes two points, called endpoints, and all the points between them
  • Perpendicular Lines: lines that intersect to form right angles
  • Parallel Lines: lines in a plane that never intersect
  • Base: a side of a polygon or a face of a solid figure by which the figure is measured or named
  • Quadrilateral: a polygon with four sides
  • Parallelogram: a quadrilateral (4-sided figure) that has both pairs of opposite sides equal and parallel (Example: all rhombi, [plural for rhombus], squares and rectangles are parallelograms)
  • Regular Polygons: a polygon that has all equal sides or equal angles
  • Irregular Polygons: a polygon that does not have all equal sides or all equal angles
  • Rectangle: a quadrilateral with four right angles and two pairs of opposite equal parallel sides
  • Square: a quadrilateral with four equal sides and four right angles, opposite sides that are parallel, two diagonals that bisect at right angles, and four lines of symmetry
  • Triangle: a polygon with three angles and three sides
  • Rhombus: a parallelogram with four equal sides and equal opposite angles
  • Trapezoid: a quadrilateral with one pair of parallel sides

Geometry Activities 

  • Name two-dimensional figures and find examples at home.
  • Draw different polygons within a piece of triangle grid paper, or use combinations of triangles to create other polygons.
  • Make flash cards of different geometric figures and their properties.
  • Identify, describe, and different household objects as two-dimensional figures.
  • Use a compass or a computer to draw geometric figures.

Geometry Independent Practice

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