Lesson Planning of Number Operation (Addition, Subtraction)

Subject Mathematics

Students` Learning Outcomes

• Solve real life problems (using Pakistani currency as well) involving addition, subtraction.

Information for teachers

• Have a concept of “addenda” and “sum”. • “Sum” result after adding quantities.
• By doing addition when things become more than ‘10’ in unit place we take ‘1’ as carry to tens or hundreds place respectively.
• When doing sums regarding subtraction if in unit place or tens of ‘minuend’ digits are smaller than ‘subtrahend’ take ‘1’ as borrow from tens or hundreds place digits and add ‘10’ in place of ‘1’ in unit and tens units.
• While teaching the lesson, the teacher should also consult textbook at all steps wherein and whenever it is applicable.

Material / Resources

Writing board, chalk/marker, duster, fake currency notes (money) of different values (4 sets), match sticks / stones

Introduction

Development

 Activity 2 Divide the class in four groups and provide each group a written story. Also provide them match sticks / stones and fake currency notes of different values. “Ali has Rs 90 in his pocket, in break he drank a juice costing Rs 19 and purchased a book costing Rs 59. How much did he spend and how much money does he have left with him”. Ask the students to read and discuss in their groups for understanding the story. Help them in their groups. Ask each group to solve and present their work in front of the class.
Sum up / Conclusion
• Amna bought stickers for Rs 29 and note books for Rs 48. How much amount Amna spent? (Expected answer would be as; Rs 77)
• Aslam has Rs 50 in his pocket. He purchased a chock bar for Rs 27. How much money is left with him? (Expected answer would be as; Rs 23).
• Teacher is also required to involve the students in solving the problems given in the exercise at the end of unit / chapter.