One-of-a-Kind: Exploring the Number 1

Materials Needed

• Paper or a notebook
• Pencil, crayons, or markers
• Small household objects, such as buttons, blocks, coins, or toys
• One container, cup, or bowl
• Optional: dice, building blocks, or a digital drawing tool

Learning Objectives

By the end of the lesson, the learner will be able to:

• Recognize, read, and write the numeral 1.
• Explain that 1 represents one object or group of one.
• Find examples of “one” in everyday life.
• Create and explain a picture, pattern, or collection featuring the number 1.

Success Criteria

I can:

• Point to and name the number 1.
• Write the number 1 clearly.
• Show one object when asked.
• Explain how I know a group contains one object.
• Use the number 1 in a creative project.

Introduction: The Mystery of One

Hook: Place several objects on a table, but leave one object in a separate container. Ask:

• “Which container has just one object?”
• “What are some things you can find only one of?”
• “Can you name one favorite food, one animal, or one place you would like to visit?”

Explain: “Today we are going to investigate the number 1. We will find it, build it, write it, and use it to create something new.”

Body

Part 1: I Do — Meet the Number 1

Show the numeral 1 by writing it slowly on paper. Say:

“This is the number 1. We use it to describe one object. One means a single object or person—not two, three, or more.”

Demonstrate with household objects:

1. Place one block in front of the learner.
2. Point to the block and say, “There is one block.”
3. Write the numeral 1 beside it.
4. Add another block and ask, “Is this still one?” Explain that it is now two.

Use a finger to trace the number in the air while saying, “Start at the top, go straight down, and add a small line at the bottom if needed.”

Quick Check

Ask the learner to show:

• One finger
• One toy
• One clap
• One jump

Part 2: We Do — Hunt for One

Work together to complete a “One Hunt” around the home or learning space.

1. Choose five places to investigate, such as the kitchen, bedroom, living room, or backyard.
2. Find one example of something in each place.
3. Record or draw each example.
4. Write the numeral 1 beside every example.

Possible examples include one door, one clock, one tree, one pet, or one favorite book.

Think-Pair-Share or Talk-It-Through

If learning with another person, take turns answering:

• “What did you find one of?”
• “How did you check that there was only one?”
• “What would you need to add to make two?”

For independent learning, the learner can explain answers aloud to a caregiver, record a short audio explanation, or write complete sentences.

Part 3: We Do — Build One

Use blocks, coins, buttons, or other safe objects.

1. Build a tower using one object.
2. Build a shape using one object.
3. Place one object in the container.
4. Predict what will happen when another object is added.
5. Add the object and count the new total.

Repeat with different objects. Emphasize that the objects may look different, but each group still represents one when it contains a single object.

Part 4: You Do — Create a “Number 1” Masterpiece

Choose one creative option:

• One-of-a-Kind Creature: Draw an imaginary creature with one eye, one tail, or one special power.
• Number 1 Collage: Draw or cut out pictures of things that come in groups of one.
• One-Object Sculpture: Use one building piece to create something and explain what it represents.
• Number Story: Write or dictate a short story about one character who discovers one special object.

The learner should include the numeral 1 somewhere in the project and explain how the project shows “one.”

Formative Assessment: Show Me One

Give the learner several small groups of objects. Some groups should contain one object, while others contain more. Ask the learner to:

1. Point to the group that shows one.
2. Count the objects aloud.
3. Write the numeral that represents the group.

Feedback prompt: “You correctly counted one object. You knew it was one because there was a single object in the group.”

Real-World Connection

Discuss how people use the number 1 every day:

• Ordering one item
• Reading a number on a calendar
• Following a first step in directions
• Choosing one answer
• Identifying one person, pet, home, or object

Invite the learner to identify one example of the number 1 during the rest of the day.

Differentiation

Additional Support

• Use large, easy-to-handle objects.
• Limit comparisons to groups of one and two.
• Let the learner trace a dotted numeral 1 before writing independently.
• Use repeated language: “One means a single object.”
• Allow pointing, speaking, drawing, or moving objects instead of requiring written responses.

Extension

• Compare one with zero and two.
• Find the number 1 in books, signs, calendars, or digital displays.
• Make a pattern that repeats one object, such as one block followed by one button.
• Write a sentence using the words one and first.
• Investigate examples of “one” in science, music, sports, or nature.

Summative Assessment

Ask the learner to complete this short demonstration:

1. Identify the numeral 1 from a group of numerals.
2. Write the numeral 1.
3. Show one object from a collection.
4. Draw one object.
5. Explain how the drawing or collection represents one.

Assessment Guide

• Excellent: Identifies, writes, represents, and explains 1 independently.
• Developing: Completes most tasks with a reminder or model.
• Beginning: Needs hands-on support, repeated practice, or visual prompts.

Conclusion: Tell What You Learned

Ask the learner to complete these sentences:

• “The number 1 means...”
• “One thing I found today was...”
• “I can show one by...”

Review the key ideas:

• The numeral 1 represents one object.
• One means a single object or person.
• We can find, count, write, build, draw, and explain one.

Exit challenge: Before the lesson ends, find one object nearby, hold it up, and say, “This is one.”