Subtraction of 2-digit numbers with exchanging, carry over or remaining
Subject: Mathematics
Class: Basic 2 / Primary 2 / Year 2
Term: Second Term / 2nd Term
Week: Week 3
Topic:
Subtraction of 2-digit numbers with exchanging, carry over or remaining
Previous Knowledge: The pupils have previous knowledge of
Addition of 2-digit numbers without exchange or remaining
that was taught in their previous lesson.
Behavioural Objectives : At the end of the lesson, learners will be able to
- Subtract 2-digit numbers without and with exchange or remaining
Instructional Materials
- Wall charts
- Pictures
- Beans
- Sticks
- Online Resource
- Textbooks
- Laptop
- Top bottles
- Matches
Methods of Teaching
- Role modelling
- Questions and Answers
- Explanation
- Discussion
- Recitation
- Imitation
- Story Telling
- Dramatization
Content:
Subtraction of Numbers deals with the ability of pupils to subtract or minus or deduct some given set of figures from one another . They will need item likes crown top, bottle top, counting sticks or abacus to perform simple tasks involving subtraction of Numbers
Keywords that imply subtraction of Numbers are
- Minus
- Subtract
- Less
- Take away
- Find the difference
Study the samples below carefully
| 1) | 92 |
| − 50 | |
| 42 |
| 2) | 69 |
| − 29 | |
| 40 |
| 3) | 68 |
| − 66 | |
| 2 |
| 4) | 19 |
| − 14 | |
| 5 |
| 5) | 47 |
| − 12 | |
| 35 |
| 6) | 67 |
| − 13 | |
| 54 |
| 7) | 44 |
| − 34 | |
| 10 |
| 8) | 99 |
| − 16 | |
| 83 |
| 9) | 98 |
| − 72 | |
| 26 |
| 10) | 77 |
| − 32 | |
| 45 |
| 11) | 22 |
| − 13 | |
| 9 |
| 12) | 77 |
| − 49 | |
| 28 |
The topic is presented step by step
Step 1: The class teacher revises the old topic
Step 2: The class teacher introduces the new topic
Step 3: The class teacher allows the pupils to give their own contributions and gives room for pupils” participation
Class Teacher and Pupils Activities. Interaction or Participation
This involves class teacher and pupils’ interaction, conversation, imitation or modeling through discussion, play method or just by recitation or asking and answering questions that are related to the topic that has just been taught
- The class teacher asks the pupils the meaning of a noun
- The class teacher makes the pupils to write out some parts of the body
Evaluation
Add the following numbers together
| 1) | 26 |
| – 12 |
| 2) | 50 |
| – 19 |
| 3) | 61 |
| – 22 |
| 4) | 88 |
| – 01 |
| 5) | 59 |
| – 40 |
| 6) | 88 |
| – 11 |
| 7) | 43 |
| – 42 |
| 8) | 82 |
| – 05 |
| 9) | 70 |
| – 11 |
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Addition of 2-digit numbers without exchange or remaining
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