Sample Lesson Plan for Subtraction for 2nd Grade Students at Hillsboro Elementary School
Learning Objectives:
- Students will be able to subtract two-digit numbers without regrouping.
- Students will be able to solve word problems involving subtraction.
Materials:
- Whiteboard or projector
- Markers or pens
- Counters or other manipulatives (optional)
Procedure:
- Introduction (5 minutes)
- Begin by asking students what they know about subtraction. What does it mean to subtract? How can we subtract two numbers?
- Explain that subtraction is the process of taking away. When we subtract two numbers, we are finding the difference between them.
- Activity (20 minutes)
- Show students the following equation on the board or projector:
56 - 23 = ?
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Ask students how we could solve this problem. Some possible strategies include:
- Using counters or other manipulatives to represent the numbers and then taking away the counters representing 23.
- Using a number line to start at 56 and counting back 23.
- Using mental math to break down the problem into smaller, easier problems.
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Once students have solved the problem, ask them to share their strategies with the class.
- Word Problems (10 minutes)
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Present students with a few word problems involving subtraction. For example:
- John has 32 apples. He gives 15 apples to his friends. How many apples does he have left?
- There are 45 students in the class. 20 students are boys. How many students are girls?
- A train has 72 passengers. 34 passengers get off at the next stop. How many passengers are left on the train?
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Ask students to solve the problems using their preferred subtraction strategy.
- Assessment (5 minutes)
- Distribute the following test to students:
Test: Subtraction
Subtract the following numbers:
- 56 - 23
- 72 - 34
- 45 - 20
- John has 32 apples. He gives 15 apples to his friends. How many apples does he have left?
- There are 45 students in the class. 20 students are boys. How many students are girls?
- A train has 72 passengers. 34 passengers get off at the next stop. How many passengers are left on the train?
- Have students complete the test independently. Once students are finished, collect the tests and grade them.
Differentiation:
- For students who need additional support, provide them with counters or other manipulatives to help them solve the problems.
- For students who are ready for a challenge, give them more difficult word problems to solve.
Graphics Explanations:
- The following graphic explains the concept of subtraction using counters:
- The following graphic explains how to solve a subtraction problem using a number line:
Videos:
- The following video explains the concept of subtraction in a fun and engaging way:
[Link to YouTube video: Subtraction Song for Kids]
- The following video provides a step-by-step explanation of how to solve subtraction problems without regrouping:
[Link to YouTube video:
Subtraction Without Regrouping]
Conclusion:
This lesson plan provides a comprehensive overview of how to teach subtraction to second grade students. By using a variety of activities and strategies, you can help all students learn and master this important math skill.
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