Measurement : Measuring Solids and Time

Subject : 

Basic Science and Technology

Term :

Second  Term

Week:

Week 10

Class :

Basic 4 / Year 4 / Primary 4

Previous lesson : 

Measurement : Measuring Liquids

Topic :

Measurement : Solids and Time

• Materials for measuring solids and time
• Metric units for measuring solids and time
• Measuring Solids and Time

Behavioural objectives :

At the end of the lesson, the pupils should be able to

• Identify materials for measuring solids and time ;
• enumerate the metric units of solid and time ;
• measure solids and time accurately

Learning Activities :

Pupils write down the materials
used for measuring liquids.

–

• Pupils identify the materials used for
  measuring solids and time e.g
  weighing scale, clock.
• Pupils discuss the metric units of
  weight and time (e.g gram, kilogram,
  tone, secs, mins, hr).
• Pupils in small groups measure
  solids and time accurately in tums by
  using weighing scale, clock, wrist
  watch etc and record their
  measurement correctly.
• Pupils in small groups discuss and
  write down the importance of
  measuring accurately.
• One person from
  each group should share with the class.

Embedded Core Skills 

• Communication and Collaboration
• Student Leadership skills and Personal Development
• Creativity and Imagination
• Critical thinking and problem solving

Instructional Materials :

• Audio-visual resources:

• Measuring cylinders of
  different sizes.
  rice, other solids, empty
  plastics, rulers, strips of
  paper, pens, notebooks,
  weighing scale, clock

Methods of Teaching :

• Class Discussion
• Group Discussion
• Asking Questions
• Explanation
• Role Modelling
• Role Delegation

Reference Materials :

• Scheme of Work
• Online Information
• Textbooks
• Workbooks
• 9 Year Basic Education Curriculum
• Workbooks

Content :

Let’s start by talking about solids. Have you ever heard of the word “volume”? Volume is a measurement of how much space an object takes up. We can measure the volume of solids using metric units such as milliliters (ml) or liters (L).

For example, when we buy milk from the grocery store, we often see it sold in liter containers. This means that the container can hold 1 liter of milk. Similarly, when we bake a cake, we might measure the flour we need in milliliters.

Now, let’s talk about time. Time is a measurement of how long something lasts or how fast it goes. We can measure time using units such as seconds, minutes, and hours.

For example, when we set a timer for cooking food, we might set it for 10 minutes. This means that the timer will go off after 10 minutes have passed. Similarly, when we talk about how long we were at a party, we might say we were there for 3 hours.

So, to summarize, we use different materials such as measuring cups or timers to measure solids and time. We use metric units such as milliliters, liters, seconds, minutes, and hours to express our measurements.

Evaluation

1. What is volume a measurement of? a) Weight b) How much space an object takes up c) How long an object lasts
2. What is the metric unit for measuring the volume of liquids? a) Milliliters (ml) b) Centimeters (cm) c) Grams (g)
3. Which of the following is an example of measuring solids using metric units? a) Measuring the time it takes to bake a cake b) Measuring the length of a piece of paper c) Measuring the amount of flour needed for a recipe in milliliters
4. Which of the following is not a metric unit for measuring time? a) Seconds b) Minutes c) Days
5. Which of the following is an example of measuring time using metric units? a) Counting the number of times you brush your teeth in a day b) Measuring the amount of time it takes to run a marathon in feet c) Measuring the duration of a movie in hours and minutes
6. Which of the following materials can be used to measure solids? a) Measuring cups b) Timers c) Stopwatches
7. Which of the following metric units is used to measure the weight of objects? a) Milliliters b) Grams c) Meters
8. Which of the following metric units is used to measure the length of objects? a) Milliliters b) Grams c) Meters
9. Which of the following materials can be used to measure time? a) Rulers b) Thermometers c) Clocks
10. How would you measure the volume of a liquid using metric units? a) Using a ruler b) Using a scale c) Using a measuring cup in milliliters or liters

Lesson Presentation

Introduction (10 minutes):

• Begin by asking students if they have ever measured anything before.
• Discuss with students the different units of measurement they are familiar with.
• Introduce the topic of solids and time measurement, and explain that we will be learning about the different materials and metric units used to measure them.

Body (30 minutes):

• Define the concept of volume and how it is measured.
• Provide examples of measuring the volume of solids using metric units, such as milliliters and liters.
• Discuss the different materials that can be used to measure solids, such as measuring cups and rulers.
• Provide examples of measuring time using metric units, such as seconds, minutes, and hours.
• Discuss the different materials that can be used to measure time, such as timers and stopwatches.
• Have students practice measuring solids and time using the different materials and metric units.

Conclusion (10 minutes):

• Review the concepts of volume and time measurement, and the different materials and metric units used to measure them.
• Have students complete worksheets to reinforce their understanding of the topic.
• Answer any questions and provide feedback to the students.

Assessment:

• Observations of students during the activities.
• Completion of worksheets to assess understanding of the topic.

Weekly Assessment /Test

1. Volume is a measurement of how much space an object ______ up.
2. The metric unit for measuring the volume of liquids is ____________.
3. We use ___________ units to express our measurements of solids and time.
4. Measuring cups and rulers are materials that can be used to measure _________.
5. Time is a measurement of how long something _______ or how fast it goes.
6. The metric unit for measuring the weight of objects is ___________.
7. Measuring the duration of a movie in hours and minutes is an example of measuring time using __________ units.
8. Milliliters and liters are metric units used for measuring the ___________ of solids and liquids.
9. We can use timers and stopwatches as materials to measure ___________.
10. Measuring the amount of flour needed for a recipe in milliliters is an example of measuring ____________ using metric units.