LESSON PLANNING FOR ADDITION OF_DIGIT NUMBERS WITHOUT CARRY

Subject Mathematics

Grade 2^{nd}

Students` Learning Outcomes

- Add 3-digit numbers and ones without carry.
- Add 3-digit numbers and 2-digit numbers without carry.

Information for Teachers

- Column addition, partial-sums and place-value method are three strategies to teach students how to add 3 digit numbers.

- For Write column headings (Hundreds, Tens and Units) for write addition questions

- While teaching the lesson, the teacher should also consult textbook where and when applicable.

Material / Resources

Writing board, chalk / marker, duster, beads, counting frame, pieces of paper, chart paper, flash cards, dice

Introduction

- Prepare flashcards of 3-digit and singles from 0 to 9.

Write figures which don`t involve carrying the units.

Shuffle the cards and distribute one 3-digit and 1 single digit card to the students of A and B group.

For A Group

- Ask the students to add the numbers and tell the answer.
- Write one statement of the question on the board; “Maria got Rs. 650 from mother and Rs. 200 from father as Eidy. How much has she?

- Ask students to solve the question.

Development

Activity 1

- Write an addition question (3-digit and single digit number) on writing board as such;

323 + 3.

- Give counting frame to students to represent first number by inserting 3 beads, 2 beads and 3 beads in unit, ten and hundred strings respectively.
- Ask students to put clips on all strings and insert 3 beads more in unit string.
- Ask students to remove clips and combine beads in respective string.
- Count the beads in each string and write numbers on notebook under the appropriate.
- Repeat this activity for 3-4 more question of addition.

Activity 2

- Write a question of 3-digit number and 2-digit number to add (without carry) on writing board.

- Ask students to solve the question in their notebooks.
- Discuss with them how this question is different from the addition questions discussed in the previous activity?
- Write the responses of students on writing board and share those differences (addition of 3-digits with 2 digits) that the digits are added in their respective places.

Activity 3

Give a piece of paper to the students in groups containing an addition question of 3-digit and 2-digit. (Make sure that there is no carrying involve in addition)

- Ask them to discuss in groups and then solve on the paper given to them.
- Ask students to paste paper on the chart paper.
- Display chart paper in classroom. Invite all students to come and observe how different students solve different question.
- After observation discuss with students how addition questions were solved by their fellows. Identify mistakes and correct those mistakes.

Activity 4

- Ask the students to solve the questions given in their textbook.

- Observe their work and guide them where necessary.
- Assign some questions to the students as home work from textbook.

Sum up / Conclusion

- Ask students, how to add 3-digit numbers into 2-digit numbers.

- Explain the addition in columns with the help of 2-3 sums.

Assessment

- Assign some questions to students to add 3-digits into 2 and 3-digits numbers (without carrying)
- Ask students to solve the following worksheet.

Follow up

- Ask students to take three dices.

- Toss them to get a 3-digit number and add 23 to it. Do this activity 5 times and write questions and answers in their notebooks.
- Ask the students to solve the questions given in their textbook.