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/ResourcesSet induction To arouse 1. Teacher shows slides of various types of Power Point( 5 minutes ) interest weighing instruments. Slide 2 to slide 5 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 kilograms Power Point(10 minutes) the symbol 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 10 scales to the 3. Teacher distributes worksheets and students to slide 13 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 and Salt, Sugar, Apple, objects and to weighing scale. Book, Marbles record them in 3. Students measure the mass of the various kilograms and objects and record them in the table provided. grams 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 scales Mass.” 2. Teacher distributes picture cards and the 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.