Grade K • Mathematics • Geometry

Grade K Mathematics

Geometry

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

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."