# Lesson Plan of Addition (4-digits with carrying)

## Students` Learning Outcomes

• Add numbers up to 4-digits (with carrying) vertically and horizontally.

### Information for Teachers

• To add 4-digit numbers (with carrying):
• Firstly add ones. If there are 10 ones or more, then change 10 ones for 1 ten and carry it to the column for tens.

• Secondly ad tens. If there are 10 tens or more, then change 10 tens for 1 hundred and carry it to the column for hundreds.
• Lastly add hundreds. If there are 10 hundreds or more, then change 10 hundreds for 1 thousand and carry it to the column for thousands.
• While teaching the lesson, also consult textbook where and when applicable.

### Material / Resources

Writing board, chalk / marker, number flashcards (8122, 8221, 8212,8112), chart (having rules of addition with carrying), Mathematics textbook

### Introduction

• What did you learn yesterday?
• After their response, write the following questions on the board:

• Call any two students to solve the questions on the board.
• Check the answers and correct the mistakes if any.
• Ask the students to tell the students that if the sum of two numbers exceeds 9, we adopt the procedure of carrying.
• After taking their response, tell the students that if the sum of two numbers exceeds 9, we adopt the procedure of carrying.
• Now write the following question on the board:

• Can you add these 4-digit numbers?
• Collect their response and solve the question with the help of the students.
• Conclude that the procedure of addition of 2-digit and 3-digit numbers is applicable to the addition of 4-digit numbers.
• Ask the students to tell which method of addition of 4-digit numbers.
• Ask the students to tell which method of addition we used in solving these questions.
• After their response, tell the students that this method of addition is called Vertical Method of Addition.
• Tell the students that we are going to learn addition of 4-digit numbers (with carrying) using vertical and horizontal methods.

### Development

Activity 1

• Display the following chart in front of the class:

• Demonstrate the rules of addition with carrying with the help of this chart.

Activity 2

• Write the following questions on the board: Add 3648 and 5362 vertically.
• Ask the students to solve the question in their notebooks.
• Provide guidance to the students where needed.
• At the end solve the question on the board and ask the students to check their work.
• Appreciate the students having correct answers.
• Facilitates the students requiring further guidance.

Activity 3

• Write the following questions on the board: add 4563 and 3649 horizontally.
• Ask the students to solve the question in their notebooks.
• Place the following number flashcards on the table in front of the class.

• Ask the students to pick the correct number flashcards from the table after solving the question.
• Tell the students that winner of this activity will be the one who first picks the correct number flashcard from the table.
• Display the correct number flashcard after the announcement of the winner.
• Ask the students to clap for the winner.
• Check the answers of the remaining students and facilitate them if necessary.

### Sum up / Conclusion

• Revise the rules of carrying of addition of 4-digit numbers with the help of chart used in Activity 1.

### Assessment

• Ask the following questions to assess the students’ understanding of the concept:
• What did you learn today?
• In what condition, the rule of carrying applies?
• What is meant by horizontal and vertical methods of addition?
• If there are 10 ones or more after adding the ones, then what will you do?
• Collect their feedback and conclude the result.

• Ask the students to complete the following questions in their notebooks.

• Find the sum of the smallest and the greatest 4-digit numbers using horizontal method of addition.
• Ask the students to solve the questions given in the textbook.

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