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	Additional and subtraction to 20
What length (min)	30
What age group	Year or Grade 1
Include homework
Include images descriptions
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Lesson Plan: Addition and Subtraction to 20

Subject

Mathematics

Grade Level

1st Grade

Duration

30 Minutes

Objective

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

• Accurately perform addition and subtraction problems up to 20.
• Understand the concepts of addition and subtraction using number lines and manipulatives.
• Apply addition and subtraction in real-world contexts.

Materials Needed

• Number line (printed or drawn on the board)
• Manipulatives (e.g., counters, blocks, or cubes)
• Whiteboard or chart paper
• Markers
• Worksheets with addition and subtraction problems
• Small rewards (e.g., stickers) for participation

Standards

• Apply addition and subtraction within 20 to solve word problems.
• Demonstrate fluency for addition and subtraction within 10.

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Introduction (5 Minutes)

1. Greeting and Warm-Up:

   • Greet students and engage them in a brief discussion about their day.
   • Ask students to think of their favorite snacks and to share how they might share them with friends (linking to addition and subtraction concepts).

2. Objective Overview:

   • Explain the lesson objectives, highlighting that today they will explore addition and subtraction with fun activities.

Direct Instruction (10 Minutes)

1. Addition Introduction:

   • Write a simple addition problem on the board, e.g., 7 + 3.
   • Use a number line to visually demonstrate how to solve it.
   • Explain how we count forward on the number line.

2. Subtraction Introduction:

   • Write a simple subtraction problem, e.g., 10 - 4.
   • Show how to solve it using the number line by counting backward.
   • Reinforce the idea that subtraction means taking away.

Guided Practice (5 Minutes)

1. Group Activity:

   • Divide students into small groups and give each group a set of manipulatives.
   • Present a few addition and subtraction problems for groups to solve using their manipulatives.
   • Walk around to assist and ensure students are on task.

2. Interactive Questions:

   • Ask groups to share their answers and explain how they solved the problems.

Independent Practice (5 Minutes)

1. Worksheets:
   • Distribute worksheets with a mix of addition and subtraction problems.
   • Encourage students to illustrate their thinking by using drawings or number lines if needed.
   • Circulate the room to provide support.

Closure (5 Minutes)

1. Review Key Concepts:

   • Summarize today’s lesson, asking students to share what they learned about addition and subtraction.
   • Highlight the importance of these skills in everyday life.

2. Exit Ticket:

   • As students leave, have them answer a quick question on a small piece of paper: "What is one way you can use addition or subtraction in your life?"

Assessment

• Observe students during group activities and independent practice to assess their understanding.
• Review worksheets to evaluate their accuracy in solving addition and subtraction problems.

Reflection

• After the lesson, reflect on what worked well and what could be improved for future lessons.

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This lesson plan encourages interactive learning, fosters collaboration among students, and incorporates visual aids to enhance understanding.