Introduction to Numbers

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Lesson Overview

Unit Title: Counting 11 to 20
Lesson Title: Introduction to Numbers 11-15
Key Stage: EYFS/Key Stage 1
Year Group: Year 1
Time Duration: 60 minutes
Curriculum Reference: National Curriculum for Mathematics (DfE Mathematics Programmes of Study, UK) - Number and Place Value (Year 1): Identify and represent numbers, count, read, and write numbers to 20.

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Lesson Objectives

By the end of this lesson, students will be able to:

1. Recognise and identify the numbers 11 through 15 in written and numeral form.
2. Count objects up to 15 with 1:1 correspondence.
3. Write the numbers 11 to 15 correctly.
4. Begin to associate quantities to these numbers through hands-on activities.

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Success Criteria

Students will demonstrate success by:

• Accurately counting physical objects to represent numbers 11–15.
• Writing numbers 11 to 15 with correct numeral formation.
• Participating actively in number recognition and counting games.

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Resources

• A4 number cards (11–15)
• Sets of 15 counters, blocks, or snap cubes (approximately 100 for the class)
• Mini whiteboards and markers (1 per child)
• Large 1-20 number line (stick to the wall or floor)
• Handout sheets with dotted outlines for tracing numbers 11–15
• A "Number Fireworks" poster (to stick stars for specific achievements)
• A magnetic board (optional)

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Lesson Breakdown

1. Starter Activity: "Count and Clap" (10 minutes)

• Gather students on the carpet for a circle time style activity.
• Teacher counts from 1 to 10 with clapping actions, asking students to join in.
• Extend the count to 15, pausing when numbers 11–15 are reached.
• Use visual cards with numbers 11, 12, 13, 14, and 15 displayed prominently.
• Ask: “What do you notice about these numbers? How do they look different from 1 to 10?” Encourage responses (e.g., “They’re bigger numbers”, “They have two digits”).
• Transition into chanting, “Let’s meet TEEN Numbers!”

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2. Teaching Input: Numbers 11–15 (15 minutes)

Step 1: Introduction with Visuals (5 minutes)

• Display A4 number cards for 11, 12, 13, 14, and 15 on the board.
• Say each number aloud and emphasise its structure (e.g., “Eleven has one ten and one extra. Twelve has one ten and two extras"). Point to the tens and ones when appropriate.
• Use the large number line and highlight where 11–15 belong within the sequence. "What comes before 11? What comes after 15?"

Step 2: Real-Life Context (3 minutes)

• Relate to real-life examples by saying: “If you invited 11 friends to a party, how would that look? What if you invited 15 people instead?”
• Invite a few students to give experiences linked to higher numbers.

Step 3: Hands-On Counting Demo (7 minutes)

• Place 11, 12, 13, 14, and 15 counters on separate plates.
• Count each set aloud with the class. Emphasise pausing and counting slowly as a team.

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3. Activity Stations: “Let’s Explore Numbers” (25 minutes)

Overview: Divide the class into 4 small groups (6–8 children per group). Groups rotate between activity stations every 5–6 minutes.

Station 1: Build and Match

Materials: Counters or snap cubes, A4 number cards.
Activity: Use the card showing a numeral (e.g., 13); students build that many counters in a tall "Number Tower".

Station 2: Trace and Write

Materials: Handout sheets, pencils, mini whiteboards.
Activity: Students trace dotted numbers (11–15) on their handouts. Stretch challenge: Students write the numbers without tracing on the mini whiteboards.

Station 3: “Pick and Place” on the Line

Materials: Large 1–20 number line.
Activity: Students pick up a card showing a number (11–15) and physically place it in the correct spot on the large number line stuck on the floor.

Station 4: “Count and Check”

Materials: Toys, blocks, animals (small figures, miscellaneous objects).
Activity: Students pick up a card showing a number (11–15) and count out the matching quantity of objects. Peers in the group check their counting.

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4. Plenary: “Number Detective” (10 minutes)

1. Display all five numbers (11–15) on the board.
2. Ask: "Who can find the number 13? How do we know it's 13?" Encourage explanations ("It’s 10 and 3 more"). Call on several students to name numbers aloud.
3. End with a group counting chant from 1–15, incorporating clapping or stomping for numbers 11–15.
4. Highlight good work by sticking stars next to the names of students who actively participated. Use the "Number Fireworks" poster for public praise.

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Differentiation

• Support: Provide extra pictorial resources (e.g., ten frames) for students who need additional help in visualising the numbers. Pair these students with a "number buddy" for support during activities.
• Stretch: Challenge confident students to say what comes before and after any number (e.g., What’s before 14?). Also, encourage them to experiment with adding smaller amounts (e.g., “You have 11 blocks. If you add 2 more, how many will you have?”).

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Assessment

• Observe students' ability to count objects during activities (accuracy and consistency).
• Check the formation of written numbers 11–15 on their sheets or whiteboards.
• Use informal questioning during plenary (“What does 13 mean? How do you write it?”) to gauge understanding.

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Reflection

After the lesson, assess overall engagement and understanding of numbers 11–15. Adjust pacing or difficulty levels for Lesson 2 based on student responses. Did they grasp the concept of "teens"? Would smaller groups or additional scaffolding help?

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This playful and active lesson will lay a strong foundation for understanding numbers beyond 10 while captivating a young audience!