Home›Lesson Plans›Mathematics›Geometry · Kindergarten

Shapes: Circles, Squares, Triangles & Rectangles

Students meet the basic flat shapes — circle, square, triangle, and rectangle — learning their names and what makes each one special: how many sides and corners it has.

KindergartenShapes30 minutes1 class periodGradual ReleaseExplicit teaching4 StandardsCommon Core
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Lesson at a Glance

Everything you need before the bell rings

Learning Objectives

Students will be able to…

  • ✓Name circle, square, triangle, rectangle.
  • ✓Count sides and corners.
  • ✓Find shapes in real life.
  • ✓Tell shapes apart.
Essential Question

A ball is round, a window is square, a slice of pizza is a triangle. What are the shapes all around us called?

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Lesson Phases
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Vocabulary Terms
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Standards Aligned
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Interactive Task
Shape Explorer · Interactive

The Shape Explorer

Project this and tap each shape. Have students count its sides and corners and find it in the room.

⭕ Explore the shapes — tap eachTry it
The Lesson · Gradual Release (I Do · We Do · You Do)

30 minutes, five moves

Tap any phase to open the teacher moves and student actions.

1

Launch — Shapes Everywhere

5 min

Look around — what shapes do you see?

👩‍🏫 Teacher Moves

  • Point out shapes in the room.
  • Ask their names.
  • Set the goal: shapes.

🎒 Student Actions

  • Spot shapes.
  • Guess names.
  • Predict the idea.
2

I Do — Sides & Corners

8 min

Teacher models.

👩‍🏫 Teacher Moves

  • Name each shape.
  • Count sides and corners.
  • Show round vs. straight.

🎒 Student Actions

  • Learn the names.
  • Count sides.
  • See corners.
3

We Do — Explore Together

9 min

Class uses the Shape Explorer.

👩‍🏫 Teacher Moves

  • Tap each shape.
  • Count its sides/corners.
  • Find it in the room.

🎒 Student Actions

  • Tap each shape.
  • Count parts.
  • Find real ones.
4

You Do — On Your Own

8 min

Students find shapes.

👩‍🏫 Teacher Moves

  • Have students draw each shape.
  • Count sides and corners.
  • Find shapes around them.

🎒 Student Actions

  • Draw shapes.
  • Count parts.
  • Find real shapes.
5

Close — Close

5 min

Name that shape.

👩‍🏫 Teacher Moves

  • Show a shape; students name it.
  • Count its parts.
  • Hand out the exit ticket.

🎒 Student Actions

  • Name the shape.
  • Count parts.
  • Complete the exit ticket.
Standards Alignment

Built to the standards you report on

Aligned to the Common Core State Standards for Mathematics.

CCSS
K.G.2

Correctly name shapes regardless of their orientations or size.

CCSS
K.G.1

Describe objects using names of shapes and positions.

CCSS
K.G.4

Analyze and compare shapes, describing their sides and corners.

CCSS
K.G.5

Model shapes by building and drawing them.

Differentiation

One lesson, every learner

Multilingual Learners

ELL / EMERGING READERS
  • Shape cards with real-object pictures.
  • Sentence frame: “A ___ has ___ sides.”
  • Trace shapes with a finger.

Support & Access

IEP / 504
  • Start with circle and square.
  • Use shape blocks to hold.
  • Count only sides first.

Stretch & Extend

GIFTED / EARLY FINISHERS
  • Sort shapes by number of sides.
  • Make a picture from shapes.
  • Find shapes on a shape hunt.
Materials

What to gather

  • 📽️Projector / board
  • 📓Math journals
  • 💻The Shape Explorer
  • 🔶Shape blocks
  • 🖍️Crayons
  • 🎫Exit-ticket slips
Vocabulary

Key terms — hover for a quick definition

shapethe form of a thingcirclea round shape with no cornerssquare4 equal sides, 4 cornerstriangle3 sides and 3 cornersrectangle4 sides with 2 long and 2 shortsidea straight edge of a shapecornerwhere two sides meetroundcurved with no corners
Evaluate

Exit Ticket

Preview the three formative checks. Tap “Sample answer” to see what mastery looks like — hide them before you print for students.

QUESTION 1
How many sides does a triangle have?
3.
QUESTION 2
Which shape is round with no corners?
A circle.
QUESTION 3
How many corners does a square have?
4.

Going deeper? Shape picture.

Have students build a picture (a house, a truck) using circles, squares, triangles, and rectangles. A printable shape-building page is in the Math library.

Study · Flashcards

Study the key terms

Tap a card to flip it, then rate whether you knew it. Built from this lesson’s vocabulary.

🃏 ShapesFlip
Card 1
Term
Tap to flip →
Meaning
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Nice work!

Practice · Quiz

Check your understanding

A quick self-check with instant feedback, drawn from this lesson’s key terms.

📝 ShapesQuiz
Score: 0
1 / 6
Question 1
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Nice work!

Practice · Worksheet

Printable worksheet

A print-and-go review sheet with a built-in answer key. Tap “Show answer key” to reveal answers, or print the clean version for students.

🖨️ ShapesPrint
Name: ________________________
Date: ____________

Part A · Write the word that matches each meaning

Word bank: circle, corner, rectangle, round, shape, side, square, triangle
  1. a straight edge of a shape
  2. curved with no corners
  3. 4 sides with 2 long and 2 short
  4. 3 sides and 3 corners
  5. 4 equal sides, 4 corners
  6. where two sides meet
  7. the form of a thing
  8. a round shape with no corners

Part B · Show what you learned

  1. How many sides does a triangle have?
  2. Which shape is round with no corners?
  3. How many corners does a square have?
Answer key — Part A: 1) side · 2) round · 3) rectangle · 4) triangle · 5) square · 6) corner · 7) shape · 8) circle
Part B: 1) 3. 2) A circle. 3) 4.