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Recognising Shapes by Attributes

A 45-minute Grade 2 lesson on naming and drawing shapes by their number of sides, angles and faces, including the quadrilaterals that have no everyday name.

Recognising Shapes by Attributes is a free 45-minute Grade 2 maths lesson plan for Common Core standard 2.G.A.1 — recognise and draw shapes by their number of sides and angles. It is timed across 5 sections, gives the exact wording to use where the wording carries the mathematics, names 3 misconceptions with the teaching move that addresses each, and ends with an exit ticket and a printable worksheet with its answer key.

Grade:
Grade 2
Length:
45 minutes
Standard:
2.G.A.1

Grade 2 · Geometry

2.G.A.1

Recognize and draw shapes having specified attributes, such as a given number of angles or a given number of equal faces.

Objective

Students will be able to identify and draw shapes given a number of sides, angles or equal faces.

Students are successful when they can

  • Names triangles, quadrilaterals, pentagons and hexagons by side count.
  • Draws a shape to a stated attribute.
  • Counts the faces of a cube and a rectangular prism.

What you need

  • Geoboards and elastic bands
  • Shape tiles including irregular quadrilaterals and pentagons
  • Solid shapes — cube, rectangular prism, pyramid
  • The printable practice sheet linked at the end of this plan

The lesson

Warm-up — count and name

5 min
  1. Show shapes one at a time; class counts sides and names them.
  2. Include an irregular pentagon, which nobody will recognise and everybody can count.

Teach — the count is the name

13 min
  1. Build a list on the board: 3 sides triangle, 4 quadrilateral, 5 pentagon, 6 hexagon.
  2. Show an irregular five-sided shape. It is a pentagon, and it looks nothing like the regular one.
  3. Draw two different quadrilaterals with the class and note both are quadrilaterals despite looking unrelated.
  4. Point out the angle count always matches the side count, and ask why. Each corner is where two sides meet.
  5. Move to solids: count the faces of a cube — six — and of a rectangular prism, also six.
  6. Ask what makes them different if the face count is the same. The faces of the cube are all equal squares.
“The name comes from the count, not from the picture in your head. Five sides is a pentagon however lopsided it looks.”

Guided practice — draw to the rule

12 min
  1. Give each pair an attribute — four sides and exactly one square corner — and ask them to build it on a geoboard.
  2. They then build a second shape meeting the same rule that looks different from the first.
  3. Ask each pair to name their shapes by side count.

Independent practice

12 min
  1. Students complete a shapes page.
  2. Irregular shapes are the diagnostic items. Regular ones can be recognised without counting anything.

Close

3 min
  1. Draw a lopsided six-sided shape and ask for its name.
  2. Hexagon, from the count and nothing else.

What goes wrong, and why

Each of these is a reasoning error rather than carelessness. The fix addresses the reasoning.

Says an irregular pentagon is 'not a real pentagon'.

Why: The prototype pentagon is regular, and the definition has quietly absorbed the equal sides that only regular examples have.

Fix: Count the sides on both. Five and five. The count is the definition and equal sides are an extra property some pentagons happen to have.

Counts the sides of a shape and gets one too many or too few.

Why: There is no marked starting point, so the first side is counted twice or missed. The same problem as counting objects in a circle.

Fix: Mark the starting corner with a finger before beginning. The rule transfers directly from counting objects and pupils recognise it.

Says a cube and a rectangular prism are the same because both have six faces.

Why: One attribute has been checked and found to match, and no other test has been applied.

Fix: Ask about the faces themselves. Six equal squares against six rectangles. The count is necessary and not sufficient, which is worth saying explicitly.

If they are not there yet

  • Work with regular shapes until the names are secure, then introduce irregular examples one at a time.
  • Let pupils trace round the shape with a finger while counting so each side is touched once.

If they finish early

  • Draw a quadrilateral with no right angles and no equal sides.
  • Count the edges and vertices of a cube as well as the faces.
  • Sort a mixed set of shapes by side count and then by whether they have a right angle.

Exit ticket

Draw a shape with 5 sides. Then say how many angles it has.

What to look for: Any pentagon, regular or not, with 5 angles. A pupil who draws a regular pentagon carefully and cannot say the angle count has the picture without the structure.

Printable practice for 2.G.A.1

Free to print and copy, answer key included. Each sheet can generate a fresh set of problems for a retake.

Questions about Recognising Shapes by Attributes

How long does the Recognising Shapes by Attributes lesson take?

45 minutes, split across 5 timed sections: warm-up 5 min, teach 13 min, guided practice 12 min, independent practice 12 min, close 3 min. The minutes are stated per section and add up to the stated length, so the plan can be cut or extended at a section boundary rather than abandoned halfway.

Which standard does Recognising Shapes by Attributes teach?

CCSS.MATH.CONTENT.2.G.A.1 — 2.G.A.1, Geometry for Grade 2: “Recognize and draw shapes having specified attributes, such as a given number of angles or a given number of equal faces.” In plain terms, recognise and draw shapes by their number of sides and angles.

What do I need to teach this lesson?

Geoboards and elastic bands, shape tiles including irregular quadrilaterals and pentagons, solid shapes — cube, rectangular prism, pyramid and the printable practice sheet linked at the end of this plan. Everything listed is either ordinary classroom equipment or a free printable from this site — there is nothing to buy and nothing to prepare beyond photocopying.

What mistakes should I expect in this lesson?

Three, each a reasoning error rather than carelessness: says an irregular pentagon is 'not a real pentagon'; counts the sides of a shape and gets one too many or too few and says a cube and a rectangular prism are the same because both have six faces. The plan gives the thinking behind each one and the teaching move that addresses the thinking rather than the symptom.

How do I know whether the lesson worked?

The exit ticket asks: “Draw a shape with 5 sides. Then say how many angles it has.” Any pentagon, regular or not, with 5 angles. A pupil who draws a regular pentagon carefully and cannot say the angle count has the picture without the structure. That tells you whether the class needs a reteach or a thirty-second conversation before you plan tomorrow.

Is there a worksheet to go with Recognising Shapes by Attributes?

Yes — 2 printable 2.G.A.1 worksheets, linked at the end of the plan and free like the rest of the site. Each one comes with an answer key and 25 versions, so the practice after the lesson can be a different paper on every desk.

Is Recognising Shapes by Attributes free to use?

Yes. The plan, its printables and their answer keys are free to read, print and photocopy for your own class, with no account and no email capture. It was last reviewed on 5 September 2026. Please do not resell it or republish it as your own.

Last reviewed 2026-09-05. Aligned to 2.G.A.1 of the Common Core State Standards for mathematics.