Measurement of Time Measurement in Centimeters and Meters Mathematics Primary 2 Third Term Lesson Notes Week 3

Measurement of Time and Measurement in Centimeters and Meters” for Primary 2 Third Term Week 3:

Measurement of Time and Measurement in Centimeters and Meters for Primary 2

Subject: Mathematics

Class: Primary 2

Term: Third Term

Week: 3

Topic: Measurement of Time and Measurement in Centimeters and Meters

Sub-topic: Understanding time units and measuring length using centimeters and meters.

Duration: 60 minutes

Behavioral Objectives: By the end of the lesson, pupils should be able to:

• Understand and use units of time: seconds, minutes, and hours.
• Convert between different units of time.
• Measure lengths using centimeters and meters.
• Convert between centimeters and meters.

Key Words: Time, seconds, minutes, hours, length, centimeters, meters.

Entry Behavior: Pupils are familiar with basic counting and have some understanding of time from daily routines.

Learning Resources and Materials:

• Clock with hour and minute hands ⏰
• Rulers for measuring in centimeters 📏
• Tape measure for measuring in meters 📏
• Charts showing different units of time and length 📊
• Workbooks and worksheets 📘

Building Background/Connection to Prior Knowledge:

• Pupils know how to count numbers from 1 to 100.
• Pupils have an idea of measuring shorter and longer lengths.

Embedded Core Skills:

• Critical thinking
• Problem-solving
• Measurement and data handling

Learning Materials:

• Lagos State Scheme of Work
• Reference books and online information
• Textbooks and workbooks

Instructional Materials:

• Clock with movable hands ⏰
• Rulers and tape measures 📏
• Visual aids (charts and diagrams) 📊

Content:

• Understanding units of time: seconds, minutes, and hours.
• Measuring lengths using centimeters and meters.
• Converting between different units of time and length.

1. What is time?
   • Time is how we measure moments throughout the day.
2. What are the units of time?
   • Seconds, minutes, and hours.
3. How many seconds are in a minute?
   • There are 60 seconds in a minute.
4. How many minutes are in an hour?
   • There are 60 minutes in an hour.
5. What is length?
   • Length tells us how long something is.
6. What is the smaller unit of length?
   • Centimeters are a smaller unit of length.
7. How many centimeters are in a meter?
   • There are 100 centimeters in a meter.
8. What is the larger unit of length?
   • Meters are a larger unit of length.
9. How do you measure in centimeters?
   • Use a ruler to measure in centimeters.
10. How do you measure in meters?
    • Use a tape measure to measure in meters.
11. What is the relationship between centimeters and meters?
    • 100 centimeters equal 1 meter.
12. Can you convert centimeters to meters?
    • Yes, divide the centimeters by 100 to get meters.
13. What does a clock show us?
    • A clock shows us the time.
14. How can you practice measuring length?
    • Use a ruler or tape measure to measure objects.
15. How can you practice reading time?
    • Use a clock to learn the hour and minute hands.

Presentation:

1. Step 1: Review of the previous topic: Counting and basic time concepts (e.g., days of the week).
   • Teacher’s Activities: Review counting and simple time concepts.
   • Learners’ Activities: Pupils respond to questions and practice with a clock.
   • 1. Understanding Time: ⏰
     • Time is how we measure moments throughout the day.
     • Time is measured in seconds, minutes, and hours.
   • 2. Seconds: ⏱️
     • The shortest unit of time.
     • Example: Blink your eyes in one second.
   • 3. Minutes: ⏰
     • 1 minute = 60 seconds.
     • Example: It takes a few minutes to eat your breakfast.
   • 4. Hours: ⏰
     • 1 hour = 60 minutes.
     • Example: You spend about 8 hours sleeping.
   • 5. Understanding Length: 📏
     • Length tells us how long something is.
   • 6. Measurement in Centimeters: 📏
     • A small unit of measurement.
     • 100 centimeters = 1 meter.
     • Example: A pencil might be around 15 centimeters long.
   • 7. Measurement in Meters: 📏
     • A larger unit of measurement.
     • 1 meter = 100 centimeters.
     • Example: A classroom might be about 7 meters long.
   • 8. Comparing Centimeters and Meters: ⚖️
     • Centimeters measure shorter lengths.
     • Meters measure longer lengths.
   • 9. Practice with a Ruler: 📏
     • Use a ruler to measure objects in centimeters.
     • Example: Measure your book and write down the length.
   • 10. Practice with a Tape Measure: 📏
     • Use a tape measure to measure longer lengths in meters.
     • Example: Measure the length of a wall and write it down.
   • 11. Converting Between Units: ↔️
     • Remember that 100 centimeters = 1 meter.
     • Convert between centimeters and meters as needed.
   • 12. Example: ✏️
     • If a rope is 200 centimeters long, how many meters is that?
       • Answer: 200 centimeters ÷ 100 = 2 meters.
   • 13. Learning Time: 🕒
     • Practice telling time using a clock.
     • Learn the hour and minute hands.
   • 14. Daily Schedule: ⏱️
     • Practice reading a schedule.
     • Example: What time do you go to school?
   • 15. Practice Exercises: ✏️
     • Measure objects around you in centimeters and meters.
     • Use a clock to practice reading time.
2. Step 2: Introduce the new topic.
   • Teacher’s Activities: Explain the concept of measuring time in seconds, minutes, and hours. Demonstrate using a clock.
   • Learners’ Activities: Pupils practice telling time on the clock.
3. Step 3: Discuss measuring length using centimeters and meters.
   • Teacher’s Activities: Show pupils how to use a ruler to measure in centimeters and a tape measure to measure in meters.
   • Learners’ Activities: Pupils practice measuring different objects using rulers and tape measures.
4. Teacher’s Activities: Provide explanations, guide pupils in practice, and answer questions.
5. Learners’ Activities: Listen to explanations, ask questions, and practice measuring.

Assessment:

• Observe pupils as they practice telling time and measuring lengths.
• Ask questions to check understanding.

Evaluation Questions:

1. How many seconds are in a minute?
2. How many minutes are in an hour?
3. What unit is smaller than a meter?
4. How many centimeters are in a meter?
5. What tool do we use to measure time?
6. What tool do we use to measure lengths in centimeters?
7. What tool do we use to measure lengths in meters?
8. Can you tell the time using a clock?
9. How do you convert centimeters to meters?
10. How do you convert seconds to minutes?
11. How many seconds are in a minute?
    a) 50
    b) 60
    c) 70
    d) 100
12. How many minutes are in an hour?
    a) 30
    b) 45
    c) 60
    d) 90
13. What unit is smaller than a meter?
    a) Kilometer
    b) Centimeter
    c) Inch
    d) Mile
14. How many centimeters are in a meter?
    a) 10
    b) 50
    c) 100
    d) 200
15. Which of these measures time?
    a) Ruler
    b) Clock
    c) Meter stick
    d) Tape measure
16. What is the longer unit of length?
    a) Inch
    b) Meter
    c) Centimeter
    d) Foot
17. What unit do we use to measure time?
    a) Meter
    b) Centimeter
    c) Minute
    d) Kilometer
18. How many hours are in a day?
    a) 12
    b) 24
    c) 18
    d) 48
19. How many days are in a week?
    a) 5
    b) 6
    c) 7
    d) 10
20. How many meters are in 200 centimeters?
    a) 2
    b) 5
    c) 20
    d) 200
21. What do we use to measure in centimeters?
    a) Clock
    b) Ruler
    c) Calendar
    d) Watch
22. What do we use to measure time?
    a) Clock
    b) Ruler
    c) Meter stick
    d) Tape measure
23. What unit of length do we use for shorter measurements?
    a) Meter
    b) Centimeter
    c) Kilometer
    d) Inch
24. What is used to measure longer lengths?
    a) Ruler
    b) Stopwatch
    c) Tape measure
    d) Stopwatch
25. How many centimeters are in 1 meter?
    a) 100
    b) 50
    c) 75
    d) 10

Conclusion:

• Go around to observe pupils’ work and provide help as needed.
• Make necessary corrections and summarize the topic.
• Assign practice exercises for pupils to continue learning at home.