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	LESSON 18 Determine whether number sentences are true or false.
What length (min)	30
What age group	Year or Grade 1
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Lesson Plan: Determine Whether Number Sentences are True or False

Subject: Mathematics

Grade: 1

Duration: 30 Minutes

Topic: Lesson 18 - Determine Whether Number Sentences are True or False

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Objectives

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

1. Understand the concept of true and false number sentences.
2. Identify whether a given number sentence is true or false.
3. Explain their reasoning for their answers.

Materials

• Whiteboard and markers
• Number sentence cards (e.g., “2 + 3 = 5”, “4 - 1 = 3”, “5 + 2 = 10”)
• Worksheets with number sentences
• Colored pencils

Introduction (5 Minutes)

• Begin the lesson by asking students if they know what a number sentence is.
• Introduce the concept by providing simple examples: a number sentence is a mathematical statement that shows an equation or an expression.
• Explain the terms "true" and "false" in relation to number sentences, emphasizing that a true sentence is correct, and a false sentence is incorrect.

Direct Instruction (10 Minutes)

• Write a true number sentence on the board (e.g., “3 + 2 = 5”) and discuss why it is true.
• Then, write a false number sentence (e.g., “4 + 2 = 7”) and ask students why it does not add up.
• Show additional examples using different operations (addition, subtraction) and encourage students to participate in determining the truth value of each sentence.

Guided Practice (10 Minutes)

• Distribute the number sentence cards among the students.
• Encourage them to work in pairs. Each pair will read their number sentences aloud, and as a group, they will decide if the sentence is true or false.
• After about 5 minutes, gather the class together and have pairs share one number sentence they discussed.
• Reinforce the idea of explaining their reasoning; ask them how they came to their conclusion.

Independent Practice (5 Minutes)

• Hand out a worksheet with various number sentences where students must circle "T" for true or "F" for false.
• Include both simple addition and subtraction problems.

Closure (5 Minutes)

• Review the importance of accuracy in number sentences and how they help us understand math better.
• Invite students to share their answers from the worksheet, correcting any misconceptions as needed.

Homework

Instructions: Complete the following number sentences, circling "T" for true and "F" for false.

1. 6 - 2 = 4 (Answer: T)
2. 5 + 2 = 8 (Answer: F)
3. 3 + 1 = 4 (Answer: T)
4. 7 - 3 = 5 (Answer: T)
5. 9 - 1 = 10 (Answer: F)

Assessment

• Observe students during guided practice to assess their understanding.
• Review completed worksheets to evaluate their ability to identify true and false number sentences accurately.

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This lesson plan contains engaging activities while focusing on the required academic standards for Grade 1 mathematics, reinforcing foundational skills in understanding number relationships.