Lesson Planning of Conversion of Units of Mass / Weight
Students` Learning Outcomes
- Convert kilograms to grams and vice versa.
Information for Teachers
- Kilogram and gram are the units to measure “weight”. Kilo means thousand that is short for ‘kilogram’.
- 1 kilogram = 1,000 gram.
- A paper clip weighs about 1 gram.
- Kilogram is written as ‘kg’ and grams as ‘g’.
- A loaf of bread weighs about 700 g.
- A gram is about a quarter of a teaspoon of sugar, cubic centimeter of water, pen cap or a pinch of salt.
- A kilogram is about 7 apples, two loaves of bread or the weight of 1 liter of water.
- To convert kilograms into grams we multiply, as; g = kg x 1,000
- To convert grams into kilograms we divide, as; kg = g ÷ 1000
- During this lesson the teacher should also consult with textbook at each level wherein and whenever it is required.
Material / Resources
Writing board, chalk/marker, duster, measuring tape, scale, and textbook
- Tell them that today we will study about converting the kg into g.
- Ask from students what do they know about weight?
- Ask them that we measure the weight of whom, why and how?
- Ask from students do they know how much is their weight and they measure the weight with which unit?
- Tell them that our weight can be measure in kilograms.
- Ask them, “Have they even seen a balance?”
- Show them a bathroom scale and measure their weight on it.
Sum up / Conclusion
- Finish the lecture by repeating some key points of the lecture.
- Kilograms and gram are the units to measure “weight”.
- Kilograms are used to measure heavy weight objects and grams to measure light weight objects.
- Kilo means thousand and 1 kilogram = 1,000 grams.
- Kilo-gram is generally written as kg and grams as g.
- To convert kilograms into grams we multiply.
- To convert grams into kilograms we divide.
- If the weight is given in both measure e.g. “kg and g” then first convert kilograms into grams and then add the grams in grams.
- Assess the students by asking them to convert these weights into g: as;
- i) 2.6 kg = ________ g.
- ii) 5 kg, 9 g = ________ g.
- iii) 21 kg = ________g.
- iv) 8 kg, 260 g = ________ g.
- Assign some questions related to the topic as homework.
- Ask the students to estimate the weight of following in kilograms and convert in grams also; as;
- i) Dinner set = ________ kg = __________ g.
- ii) Hen = ________________ kg = __________ g.
- iii) Pillow = __________ kg = __________ g.