Download the Lessonotes Mobile Liberia app for faster lesson access on Android and iPhone.
Subject: General Science
Semester: 2
Period: 5
Week: 28
School Name:
Teacher’s Name:
Subject: General Science
Grade Level: Grade 3
Date: Week 28
Lesson Duration: 45 minutes
Week & Period: Week 28, Period 5
Topic: Measurement of Properties of Matter
Sub-topic: Learning Ways to Measure Matter
Learning Objectives
By the end of the lesson, students should be able to:
identify tools used to measure properties of matter, e.g., rulers, weighing scales, measuring cylinders, thermometers.
demonstrate measuring length, mass, volume, and temperature.
discuss the importance of accurate measurement in science.
Previous Knowledge
Students already know:
Objects have properties like length, mass, volume, and temperature that can be measured.
Instructional Materials
Rulers, weighing scales, measuring cylinders, thermometers, various objects for measurement, worksheets.
Lesson Development – ABC Model
A – Anticipation (Warm-up / Starter)
Time: 5–10 minutes
Ask learners how they know how long, heavy, or hot something is and what tools they might use.
B – Building Knowledge (Main Lesson Body)
Time: 25–30 minutes
Learners’ Activities (Expanded):
- Learners handle measuring tools and practice measuring different properties of matter:
- Length: using rulers, meter sticks, or measuring tapes on pencils, books, or desks
- Mass: using weighing scales for objects like stones, fruits, or water containers
- Volume: using measuring cylinders or cups to measure water, sand, or rice
- Temperature: using thermometers for water or air
- Students record measurements in worksheets or notebooks.
- Learners compare measurements of similar objects and discuss differences.
- Learners discuss the importance of precise measurements, including:
- Ensuring accurate results in science experiments
- Cooking and preparing food
- Constructing or building things correctly
- Optional activity: learners estimate first and then measure to see how close their estimates are to actual values.
Assessment Checks (Expanded):
- Ask learners to measure one object’s length, mass, volume, or temperature and report results.
- Observe learners using tools correctly and safely, noting technique and accuracy.
- Ask learners to explain why accurate measurement is important in science and daily life.
Notes (Expanded & Detailed):
- Different properties of matter require different measurement tools:
- Length: ruler, meter stick, measuring tape
- Mass: weighing scale, balance
- Volume: measuring cylinder, cups, or containers
- Temperature: thermometer
- Accuracy and precision are essential for reliable results in experiments and practical tasks.
- Practical exercises allow learners to connect abstract concepts to real-life situations, such as measuring ingredients, building objects, or tracking temperature changes.
- Encourage learners to handle tools safely and record observations systematically for better understanding and reproducibility.
C – Consolidation (Conclusion & Assessment)
Time: 5–10 minutes
Summary:
Recap the different tools for measuring matter and their proper use. Emphasize accuracy and careful observation.
Evaluation Method (Expanded)
Exit slip/quiz: Learners name one tool for each property (length, mass, volume, temperature) and explain its use.
Teacher will collect slips and provide oral feedback.
Assignment (Expanded)
Measure three items at home using proper tools and record their length, mass, volume, or temperature.
Follow-up Activity
Create a classroom chart showing each measuring tool, the property it measures, and examples of items measured.
Differentiation / Inclusive Strategies
Provide step-by-step demonstrations. Pair learners for guided measurement practice. Offer additional support for learners needing help using tools.
Teacher’s Reflection (After Class)
What worked well? ___________________________________________
What needs improvement? ____________________________________
Students’ engagement level: ☑ High ☑ Medium ☑ Low