aidemia--modules-lessonplan_request	Titles of parts of the lesson must be formatted as headings
What to create	Lesson plan
Which subject	Mathematics
What topic	Double digit addition bridging ten
What length (min)	30
What age group	Year or Grade 1
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Lesson Plan: Double Digit Addition Bridging Ten

Subject: Mathematics
Grade Level: Year 1
Duration: 30 minutes
Topic: Double Digit Addition Bridging Ten

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Learning Objectives

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

1. Understand the concept of double-digit addition.
2. Demonstrate the ability to bridge ten when adding.
3. Solve double-digit addition problems confidently, using strategies to simplify calculations.

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Resources Needed

• Whiteboard and markers
• Base ten blocks (or counters)
• Worksheets with double-digit addition problems
• Number cards (1-20)
• Visual aids (charts showing addition strategies)

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Lesson Outline

Introduction (5 minutes)

1. Hook: Begin with a brief discussion about addition. Ask students:

   • “What do we do when we add numbers?”
   • “Can anyone tell me what happens when we reach ten or more?”

2. Explain: Introduce the technique of “bridging ten” using examples. Show how adding numbers can go over ten and how we handle this.

Direct Instruction (10 minutes)

1. Demonstration:

   • Write an example on the board, such as 27 + 6.
   • Show students step-by-step how to add 27 and 6.
     • Break it down:
       • Add 2 (tens) and 6 (ones) to see that it makes 8 (ones) and 2 (tens) remains the same.
       • Combine them to make 33.

2. Model Using Base Ten Blocks:

   • Demonstrate with base ten blocks how a group of ten can be traded for another ten. For example, using blocks to show 27 + 6 by combining 2 tens, 7 ones, and then adding 6 more ones.

Guided Practice (10 minutes)

1. Group Activity:

   • Divide students into small groups.
   • Provide each group with base ten blocks and a set of addition problems bridging ten (e.g., 25 + 7, 29 + 5).
   • Encourage students to use the blocks to find answers.

2. Walk Around:

   • Monitor groups and provide support. Ask guiding questions to prompt their thinking.
   • Example questions:
     • “How many more do we need to reach ten?”
     • “What will happen if we add those extra ones?”

Independent Practice (5 minutes)

1. Worksheets:

   • Distribute worksheets with double-digit addition problems that require bridging ten.
   • Problems should include visual representations (e.g., number lines or part-whole models) to aid understanding.

2. Completion:

   • Students complete the worksheets individually, providing them with the opportunity to apply what they’ve learned.

Conclusion (5 minutes)

1. Review:

   • Gather students’ attention and ask a few students to share their answers and their approaches to bridging ten.
   • Reinforce the key strategies discussed.

2. Exit Ticket:

   • Have students write one double-digit addition problem on a small card that shows bridging ten, along with their answer.
   • Collect the cards as they leave to assess understanding.

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Assessment

• Observe student engagement and participation during activities.
• Review completed worksheets for accuracy and understanding.
• Assess exit tickets to evaluate each student's grasp of the concept.

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Differentiation

• For Advanced Learners: Provide more challenging problems involving three-digit addition.
• For Struggling Learners: Pair them with peers for additional support and provide manipulatives for hands-on learning.

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Reflection

After the lesson, reflect on:

• What worked well?
• What could be improved for next time?
• Were the learning objectives achieved?

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This lesson plan adheres to the Australian Curriculum for Mathematics and promotes interactive, hands-on learning suitable for Year 1 students.