The Amazing Number 1: One-of-a-Kind Math Adventure

Materials Needed

• Paper and pencil or crayons
• Small collection of objects, such as blocks, buttons, toy animals, or snacks
• Number cards from 0 to 5, homemade or printed
• One paper plate or sheet of paper
• Optional: dice, building blocks, tablet camera, or music

Learning Objectives

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

• Recognize and name the numeral 1.
• Count one object accurately and connect it to the numeral 1.
• Identify groups containing exactly one object.
• Write or trace the numeral 1.
• Give an example of something that comes in a group of one.

Success Criteria

I can:

• Point to the number 1 when asked.
• Show one object, not zero and not more than one.
• Count one object by saying “one.”
• Trace or write the numeral 1.
• Explain that one means a single object.

Introduction: The Mystery of One

Hook: Place several objects in front of the learner, but secretly place one special object on a separate paper plate. Ask:

“Which plate has just one object? How do you know?”

Invite the learner to inspect both groups. Introduce the lesson:

“Today we are going on a number adventure to discover the number 1. We will find one object, count one object, and learn how to write the symbol for one.”

Quick Warm-Up: One-of-a-Kind Actions

Call out actions for the learner to perform exactly once:

• Clap one time.
• Jump one time.
• Touch one toe.
• Give one wave.
• Spin around one time.

After each action, ask, “How many times did you do it?” Encourage the learner to answer, “One.”

Body of the Lesson

I Do: Teacher or Adult Demonstration

1. Place one block on the table.
2. Point to the block and say slowly, “One.”
3. Show the number card with the numeral 1.
4. Say, “This symbol is called the numeral 1. It tells us there is one object.”
5. Compare the group of one block with a group of two or three blocks.
6. Explain, “This group has one. This group has more than one.”

Modeling How to Write 1

Use a finger in the air or on a table to demonstrate:

1. Start at the top.
2. Make a short slanting line down.
3. Make a straight line down.

Say, “Start at the top and slide down to make 1.” Let the learner watch you write the numeral several times.

We Do: Discover and Practice Together

Activity 1: One or More?

Make several groups using objects. Include groups with zero, one, two, and three objects. Show one group at a time and ask:

• “How many objects do you see?”
• “Is this group one?”
• “How do you know?”

When the group contains exactly one object, have the learner place the numeral 1 card beside it.

Formative check: Show three groups in random order. Ask the learner to point to the group that has exactly one object.

Activity 2: Think, Pair, and Share

Ask the learner to think of things that usually come in groups of one. Examples might include:

• One nose
• One moon in a picture of the night sky
• One backpack
• One favorite toy
• One person in a photograph

If learning with another person, have the learner share an idea with a parent, sibling, or tutor. If learning independently, the learner may draw or act out the example.

Activity 3: Build One

Give the learner a collection of blocks or other objects. Call out a number from 0 to 3. The learner builds that number, then places the matching number card next to it. When you call “one,” the learner should build a group containing exactly one object.

You Do: Independent Number 1 Mission

Invite the learner to complete the following missions:

1. Find it: Find one object in the room.
2. Count it: Touch the object and say, “One.”
3. Match it: Place the numeral 1 card beside the object or draw the numeral 1 next to it.
4. Draw it: Draw one favorite object.
5. Write it: Trace or write the numeral 1 several times.

Creative Choice

The learner may choose one of these projects:

• Create a “Number 1” collage using one sticker, one drawing, or one paper shape.
• Take a photograph of one interesting object and add the numeral 1 to the picture.
• Build one object from blocks and give it a name, such as “One-Bot.”
• Make up a short story about one character on an adventure.

Real-World Connection

Explain that people use the idea of one every day:

• Choosing one book to read
• Taking one turn in a game
• Following one instruction at a time
• Using one spoon or one cup
• Giving one answer to a question

Ask, “When might you need to make sure you have exactly one item?”

Movement Game: Number 1 Freeze

1. Play music or clap a steady beat.
2. When the music stops, call out “One!”
3. The learner freezes in a pose with one body part raised, such as one hand or one foot.
4. Ask, “How many hands or feet are raised?”

Differentiation and Adaptations

Support for Learners Who Need More Help

• Use large, familiar objects with clear spaces between them.
• Begin with a comparison between zero objects and one object.
• Guide the learner’s hand while counting and touching the single object.
• Use a dotted or highlighted numeral 1 for tracing.
• Repeat the same language: “One means a single object.”
• Allow the learner to answer by pointing, speaking, signing, or selecting a card.

Extensions for Learners Ready for More

• Find the numeral 1 in books, labels, calendars, or signs.
• Practice ordering number cards from 0 to 5.
• Compare one with two and explain which group has more.
• Write a sentence such as, “I have one dog.”
• Explore that one can be represented as a dot, tally mark, word, or numeral.

Flexible Learning Options

• Hands-on: Use toys, blocks, food, or household objects.
• Digital: Photograph one object or use a simple drawing application.
• Verbal: Describe groups using spoken answers.
• Written: Complete a worksheet or make a number journal page.
• Active: Use movement commands and the Number 1 Freeze game.

Assessment

Formative Assessment During the Lesson

• Ask the learner to point to the group containing one object.
• Ask the learner to match the numeral 1 to a group of one.
• Observe whether the learner touches and counts the object once.
• Ask, “What does the number 1 tell us?”
• Check the learner’s formation of the numeral 1 during tracing or writing.

Summative Demonstration

Give the learner a mixed collection of objects and number cards. Ask the learner to:

1. Make a group containing exactly one object.
2. Choose the numeral card that matches the group.
3. Count the object aloud.
4. Draw or write the numeral 1.
5. Give one example of something found in a group of one.

Success Checklist

Conclusion: Tell What We Learned

Ask the learner to complete these statements:

• “The number 1 means ______.”
• “One group has ______ object.”
• “I can write 1 by ______.”
• “One thing I found today was ______.”

Finish with a celebratory chant:

“One is fun! One is bright! One means a single thing in sight!”

For a final exit ticket, ask the learner to draw one star and write the numeral 1 beside it.