Grade K • Mathematics • Geometry

Grade K Mathematics

Geometry

Vocabulary

  • Attributes: a characteristic of an object that students use to define the object (e.g., thin, thick, small, large, 3 sides, 4 sides, etc.)
  • Two-Dimensional (flat): the outline of a shape such as a triangle, square, or rectangle
  • Circle: a closed round figure
  • Rectangle: a shape with four sides and four square corners
  • Square: a rectangle that has four equal sides
  • Triangle: a shape with three sides and three corners
  • Hexagon: a shape with six sides
  • Three-Dimensional: a solid figure
  • Face:  the flat surface of a solid figure
  • Side:  line segments of shapes
  • Cube: a solid with 6 faces all the same size
  • Rectangular Prism: a solid with two identical rectangular bases
  • Cone: a solid with one curved surface, one flat surface that comes to a point
  • Cylinder: a solid with one curved surface and two identical circle bases
  • Whole: all, everything, total amount

Activities 

  • Go on a shape hunt outside, ask your student to name the shapes of doors, windows, bicycle wheels, etc.
  • Ask your student to identify the shapes of various road signs while traveling in the car.
  • Talk with your student about the various shapes of items packaged in the grocery store.
  • Build with blocks. Discuss what shapes were used to create the structure.
  • Look around your home for solid shapes. Name at least 3 solid shapes.
  • Look around your home for flat shapes. Draw at least three of the shapes.
  • Look around your home for circles. Count them and record how many you found.
  • Use marshmallows and bendy straws, toothpicks, or pipe cleaners to build as many shapes as you can. Record the names of your shapes.
  • Make a picture using 2 circles, 3 triangles, & 1 rectangle. Describe to a friend how you made it.
  • Explore position words. Use toys to model before, after, above, below, and beside. Describe using attributes, such as "the blue car is behind the red car."