Lesson Plan: Partitioning Two-Digit Numbers into 10's and 1's Using MAB Blocks
Subject: Mathematics
Grade Level: Year 1
Duration: 30 minutes
Topic: Partitioning Two-Digit Numbers into 10's and 1's Using MAB Blocks
Learning Objectives
By the end of this lesson, students will be able to:
- Understand the concept of partitioning two-digit numbers into tens and ones.
- Use MAB (Multi-Base Arithmetic) blocks to represent and manipulate two-digit numbers.
- Apply their knowledge in identifying and writing two-digit numbers in terms of tens and ones.
Materials Needed
- MAB blocks (tens and ones)
- Whiteboard and markers
- Worksheets with two-digit number exercises
- Pencils
- Sticky notes (optional for group work)
Introduction (5 minutes)
-
Greeting and Warm-Up
- Begin the lesson by greeting the students warmly.
- Ask students if they know what two-digit numbers are. Provide a few examples such as 12, 23, and 45.
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Introduce MAB Blocks
- Display MAB blocks to the students, explaining that the long blocks represent 'tens' and the small blocks represent 'ones'.
- Show how to count the blocks.
Direct Instruction (10 minutes)
-
Demonstration
- Using the whiteboard, write a two-digit number (e.g., 34).
- Show how to represent this number using MAB blocks: place three ten blocks and four one blocks on the table.
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Explanation of Partitioning
- Explain that the number 34 can be split into its parts: 30 (three tens) and 4 (four ones).
- Ask the students to repeat the number partitioning after you: “Thirty-four is made up of three tens and four ones.”
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Visual Representation
- Draw the blocks on the whiteboard alongside the numbers to visually represent the partitioning.
Guided Practice (10 minutes)
-
Group Activity
- Divide the class into small groups.
- Give each group a set of MAB blocks and a worksheet containing various two-digit numbers (e.g., 21, 56, 89).
- Instruct groups to use the MAB blocks to represent each number, partitioning them into tens and ones.
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Monitor and Assist
- Walk around the classroom observing group activity and providing assistance as needed.
- Encourage students to discuss within their groups how they are partitioning the numbers.
Independent Practice (5 minutes)
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Worksheet Completion
- Distribute a worksheet for students to work on independently.
- The worksheet should have several two-digit numbers for students to partition into tens and ones, drawing MAB blocks to illustrate their answers.
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Reinforcement
- Remind students to show their workings on the paper, ensuring they write down how many tens and ones each number contains.
Closure (2 minutes)
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Review Learning Outcomes
- Call for attention and review what has been learned today about partitioning two-digit numbers.
- Ask a few students to share their partitioning results from the worksheet.
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Reinforce Concepts
- Highlight the significance of understanding tens and ones and how it helps in addition and subtraction.
Assessment
- Observe group activities for participation and understanding.
- Collect worksheets to assess students' ability to partition two-digit numbers correctly.
Extensions
- For students who finish early, provide an additional challenge: ask them to create their own two-digit numbers and partition them using the MAB blocks, then share with the class.
Notes
- Ensure to incorporate plenty of praise and encouragement throughout the lesson.
- Be prepared to adapt the lesson for students who may need additional support or challenges.
This lesson plan is designed to engage Year 1 students in a hands-on approach to understanding the concept of partitioning two-digit numbers, aligning with Australian curriculum standards for Mathematics.