The 60 minute lesson plan teaches 3rd year students about mass and how to measure objects using kilograms and grams. Students will learn to read scales, measure masses of various objects using standard units, and record their measurements. Hands-on activities include comparing object weights, reading scales, measuring sample objects, and a closing game to reinforce learning.
1. LESSON PLAN
Subject : Mathematics
Year : 3
Topic : Mass
Duration/Time : 60 minutes
Subject Content : Kilogram is a standard unit used to weigh heavy objects, and gram is a
standard unit used to weigh light objects.
Learning Outcomes : At the end of the lesson the pupils will be able to:
1. Read scales to the nearest division.
2. Measure and record masses of objects using the standard units.
Moral Values : Being Cooperative and helpful
Thinking Skills : Comparing and reasoning.
Teaching Aids : Books, Salt, Sugar, Apple, Marbles weighing instrument, chalks.
Step/Time Skill/Content Teaching and Learning Activities Remark/Resources
Set To arouse 1. Teacher shows slides of various types of Power Point
induction interest weighing instruments. Slide 2 to slide 5
( 5 minutes ) 2. Teacher talks about the weighing
instruments used from the olden days till
modern times.
Step 1 To introduce 1. Teacher introduces the concept of weight by Equal arm balance,
(10 minutes) the concept of comparing two objects; marble and chalk. Marble, Chalk
weight 2. Students try to guess which object is heavier.
3. Teacher puts the two objects onto the equal
arm balance.
4. Students now can see which is heavier and
make this conclusion:
“The marble is heavier than a piece of
chalk.”
Step 2 To introduce 1. Teacher introduces the symbols for Power Point
(10 minutes) the symbol kilograms and grams. Slide 6 to slide 9
“kg” and “g” 2. Teacher guides students to read the weighing Worksheet 1 or
and to read scales to the nearest division. power point slide
scales to the 3. Teacher distributes worksheets and students 10 to slide 13
2. nearest write down the masses of the objects.
division 4. Teacher checks answers with the students.
Step 3 To measure 1. Teacher divides class into 3 groups. Weighing scale
(15 minutes) masses of 2. The group leader will collect all the objects Salt, Sugar, Apple,
objects and to and weighing scale. Book, Marbles
record them in 3. Students measure the mass of the various
kilograms and objects and record them in the table
grams provided.
Items
Mass
Salt
Sugar
Apple
Book
5 marbles
4. Teacher goes around checking that the
students are weighing and reading the scales
correctly.
Closure Game – 1. Students remain in the same group for the Picture cards.
(5 minutes) “Show The game. Cut-out face of
Mass.” 2. Teacher distributes picture cards and the scales
face of the weighing scales.
3. Students take turns to read the mass of the
objects and turn the pointer to show the
correct mass.
