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2D and 3D Shapes Worksheets for 1st Graders

12 free PDFsUS Letter or A4Answer key includedNo login

Shape pages for 1st grade: a 2D and 3D chart, sides and vertices, what makes a triangle or rectangle, riddles, drawing, putting shapes together and 3D shapes.

Download the 2d and 3d shapes worksheets

Shapes chart and attributes

Riddles and drawing

Put shapes together

3D shapes

Print at 100% (actual size) for the cleanest tracing lines.

About these 2d and 3d shapes worksheets

In 1st grade, children move from naming shapes to explaining what makes a shape that shape. A triangle is closed and has three straight sides; its color, size and which way it is turned do not matter. They also put shapes together to make new ones, with flat shapes and with solids.

The chart shows the flat and solid shapes first graders use, with sides, vertices and faces. Then children count sides and vertices, sort shapes that are and are not triangles or rectangles (open shapes, curved sides and rounded corners included), decide which sentences about shapes are true, solve riddles, and draw shapes from clues on dot grids.

Putting shapes together comes next: counting the small shapes inside a big one, choosing the shape two or more pieces make, and naming the two solids that make a stacked shape. 3D pages cover naming solids and matching them to everyday things like a can, a ball and a box. Every page with right answers has an answer key.

Standards

  • CCSS.MATH.CONTENT.1.G.A.1Distinguish between defining attributes (e.g., triangles are closed and three-sided) versus non-defining attributes (e.g., color, orientation, overall size); build and draw shapes to possess defining attributes.
  • CCSS.MATH.CONTENT.1.G.A.2Compose two-dimensional shapes (rectangles, squares, trapezoids, triangles, half-circles, and quarter-circles) or three-dimensional shapes (cubes, right rectangular prisms, right circular cones, and right circular cylinders) to create a composite shape, and compose new shapes from the composite shape.

How to use them

  1. Start with the chart and a hunt: find something shaped like each solid in your kitchen or classroom.
  2. On "Triangle or Not?" and "Rectangle or Not?" ask your child to say why each shape is or is not one. "It has a curved side" is a great answer.
  3. Use pattern blocks or paper cut-outs with the "Make a New Shape" page so children can move the pieces.
  4. Have your child trace each side with a finger while counting, and put a dot on each vertex, so none are missed.
  5. For 3D shapes, let children hold real objects: does it roll, stack, or both?

Teaching tips

  • Vertices are corners. Saying both words together helps: "vertices, the corners."
  • A square turned on its point is still a square, and a square is also a rectangle. The keys count squares as rectangles.
  • Children often decide shapes by how they look overall. Bring them back to sides and corners.
  • Two cubes side by side make a rectangular prism. Building it with real blocks makes the 3D page easy.

Questions teachers and parents ask

What shapes do 1st graders learn?

Flat shapes such as circles, triangles, squares, rectangles, trapezoids, hexagons, half circles and quarter circles, and solids such as cubes, rectangular prisms, cones, cylinders and spheres.

What are defining attributes?

They are the things that make a shape what it is, like being closed and having three straight sides for a triangle. Color, size and how a shape is turned are not defining attributes.

What are vertices?

Vertices are corners, the points where two sides meet. A triangle has 3 vertices and a hexagon has 6.

Is a square a rectangle?

Yes. A rectangle has four straight sides and four square corners, and a square has all of that plus four equal sides. Our rectangle pages count squares as rectangles.

Do the shapes worksheets have answer keys?

Yes. Every page with right answers has an answer key on page 2. On the drawing page, the key shows examples, and any shape that fits the clue is right.