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What to create	Lesson plan
Which subject	Mathematics
What topic	Interrupting Counting on
What length (min)	30
What age group	Reception / Kindergarten
Include homework
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Lesson Plan: Interrupting Counting

Subject: Mathematics

Grade Level: Reception / Kindergarten

Duration: 30 Minutes

Topic: Interrupting Counting

Objectives

• Students will be able to recognize and understand the concept of numbers up to 20.
• Students will practice counting forward and identifying numbers that interrupt a counting sequence.
• Students will engage in activities that encourage critical thinking about numbers.

Materials Needed

• Counting blocks or cubes (numbered 1-20)
• Number flashcards (1-20)
• A whiteboard and markers
• Worksheets for independent practice
• A small bell or a small percussion instrument for a counting game

Introduction (5 minutes)

1. Greeting and Warm-up:
   • Begin the class with a brief greeting. Ask students if they enjoy counting and if they can count to 10 together.
2. Introduction to Interrupting Counting:
   • Explain that today they will learn how to count but sometimes, numbers might interrupt our counting sequence. Use the example: “If we are counting by ones, what happens if I say a different number in between?”

Direct Instruction (10 minutes)

1. Counting Demonstration:

   • Using the counting blocks, demonstrate counting from 1 to 20 and then intentionally interrupt the counting with a different number (e.g., “1, 2, 3, 5, 4, 6...”).
   • Ask students to identify the mistake and correct the counting.

2. Number Flashcards:

   • Show flashcards and ask students to call out the number on the card. As you show each card, sometimes flash an incorrect number to interrupt the flow.
   • Praise students for correcting the interrupts and encourage them to shout “Stop!” if they see an interruption.

Guided Practice (10 minutes)

1. Counting Game:

   • Using the small bell or percussion instrument, play a game where you count to 10, and at certain intervals ring the bell for students to shout the next number. Occasionally interrupt them with another number.
   • Discuss what number interrupted the sequence and invite students to correct it.

2. Worksheet Activity:

   • Distribute worksheets that have sequences with interruptions. For example, “1, 2, 3, , 5, , 7” where students fill in the blanks or circle the incorrect numbers in a sequence.

Independent Practice (5 minutes)

• Provide students with a counting worksheet where they will cut out number cards and glue them on the correct spaces in a sequence, identifying which numbers relate and correcting any interruptions.

Conclusion (5 minutes)

• Review the lesson's main points:
  • Counting is great, but we sometimes make mistakes.
  • Numbers can be fun to work with even when they interrupt!
• Take a moment to share a few students’ answers from their worksheets.

Homework

Counting Challenge:

1. Count from 1 to 20, but skip the numbers: 5, 10, and 15.

2. Write down the numbers you counted:

   • Your numbers: ___
     (Expected answer: 1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 13, 14, 16, 17, 18, 19, 20)

3. Draw a picture of your favorite number and share why that number is special to you.

Assessment

• Observe participation during counting games and activities to gauge understanding of interrupting counting.
• Review worksheets and homework to assess comprehension and ability to identify and correct number interruptions.

Additional Notes

• Adapt the lesson based on the needs and understanding of your students.
• Encourage cooperation by pairing students for group activities and encouraging dialogue about their thought processes when counting.

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This lesson plan aims to engage young learners with a fun approach to recognizing counting sequences and interruptions, allowing for a mix of instruction, practice, and creativity!