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Subject: Mathematics
Semester: 1
Period: 1
Week: 4
School Name:
Teacher’s Name:
Subject: Mathematics
Grade Level: Grade 2
Date: Week 4
Lesson Duration: 45 minutes
Week & Period: Week 4, Period 1
Topic: Addition and Subtraction Using Population Data
Sub-topic: Two-digit addition and subtraction with real data
Learning Objectives
By the end of the lesson, students should be able to:
• Add and subtract two-digit numbers using data
• Interpret sets and data values
• Solve real-life problems with addition and subtraction
Previous Knowledge
Students already know addition and subtraction of small numbers.
Instructional Materials
Mathematics textbook for Grade 2
Lesson Development – ABC Model
A – Anticipation (Warm-up / Starter)
Time: 5–10 minutes
Teacher asks: “How many boys are in class? How many girls? What is the total?” Learners respond with real data.
B – Building Knowledge (Main Lesson Body)
Time: 25–30 minutes
Addition means putting numbers together. Example: If there are 23 boys and 15 girls, total = 23 + 15 = 38 learners. Subtraction means taking away from a total. Example: If total = 50 and 18 learners are absent, then present = 50 – 18 = 32. Population data means using real-life numbers from groups of people.
Learners’ Activities (Expanded):
Learners use class attendance to form data. Learners solve word problems using two-digit addition and subtraction. Learners write equations from story problems.
Assessment Checks:
What does addition mean? What does subtraction mean? If there are 34 boys and 22 girls, what is the total number of learners?
Notes (Expanded & Detailed):
Addition is combining two numbers. Subtraction is finding the difference. Real-life data makes addition and subtraction meaningful.
C – Consolidation (Conclusion & Assessment)
Time: 5–10 minutes
Summary: Addition means putting together. Subtraction means taking away. We can use real data to solve problems.
Evaluation Method (Expanded):
Exit slip/quiz: If a school has 45 boys and 32 girls, how many learners are there altogether? Teacher will collect slips and provide oral feedback.
Assignment (Expanded):
At home, count the number of chairs and stools. Add them together.
Follow-up Activity:
Work with local data (number of shops, houses, or trees in the area).
Differentiation / Inclusive Strategies
Provide number lines for weaker learners. Use real-life examples to simplify.
Teacher’s Reflection (After Class)
What worked well? ___________________________________________
What needs improvement? ____________________________________
Students’ engagement level: ☑ High ☑ Medium ☑ Low