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Grade 1 Geometry

What Your Child Will Learn

Distinguish between defining and non-defining attributes. (1.G.1)
Quarter 2
Compose two or three-dimensional shapes to create a composite shape. (1.G.2)
Quarter 2
Partition circles and rectangles into two and four equal shares. (1.G.3)
Quarter 2


  • Face: the flat surface of a solid figure
  • Side: a line segment joining two corners of a figure
  • Attributes: a characteristic such as shape or size
  • Angle: two rays that share an endpoint
  • Two-Dimensional: the outline of a shape
    such as a triangle, square, or rectangle
  • Three-Dimensional: a solid figure
  • Composite: made up of several different things
  • Half: 2 equal parts
  • Quarter: 4 equal parts
  • Circle: a closed round figure
  • Rectangle: a shape with four sides and four corners
  • Square: a rectangle that has four equal sides
  • Triangle: a shape with three sides and three corners
  • Trapezoid: a four-sided shape with only two opposite sides
    that are parallel
  • 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 At Home

  • 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.

Learning Links

Finding Shapes
Solid Figures
Guess the Solid Figure
Shape Sorter


1st Grade Common Core

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