Plan of Units of Mass/ Weight

Lesson Plan of Units of Mass/ Weight

Subject Mathematics

Grade III

Students` Learning Outcomes

  • Read standard units of mass/weight (Kilogram and gram) using abbreviations.

Information for Teachers

  • The basic unit of mass is kilogram.
  • Kilogram is used for heavy weight.
  • Gram is used for light weight.
  • The letters “kg” is used as an abbreviation for kilogram and “g” for gram.
  • “Kilo” means one thousand. 1kg =1000g.

Units of Mass/ Weight

  • Make the following charts and display in the classroom.

Units of Mass/ Weight

Material / Resources

Writing board, chalk/marker, duster, tooth paste; bath soap; medicine bottle; jam jar; sack of rice; packs of ghee; sack of flour; tea box all packs are empty; 1kg weight; 500g weight

Introduction

  • Show 1kg weight to students. Look at this (14kg) weight.
  • Have you ever seen it before?(at vegetable shop)
  • What unit is written on this weight? (1kg)

Units of Mass/ Weight

  • Tell them “kg” is the abbreviation of kilogram. This unit is used to measure the mass./weight of heavier thing e.g. flour, rice, potatoes, fruit etc. are weighted in kg.
  • “g” is the abbreviation of gram. This unit is used to measure the lighter mass/weight.
  • The ornaments of gold and silver ware weighted in g.
  • Medicines are also weighted in g.
  • One gram is much, much lighter weight than 1kg.

Development

Activity 1

  • Show some objects on which mass is mentioned in g or kg.
  • Tooth paste; bath soap; medicine bottle; jam jar; packs of ghee; sack of flour; tea box.

Units of Mass/ Weight

  • Call the students one by one, ask them to pick anything from table.
  • Ask from students what is the weight mentioned on these objects.
  • What is the weight mentioned on tooth paste? (50g)
  • What is the weight mentioned on bath soap?(small pack 80g)
  • What is the weight written on medicine bottle?
  • Weight mentioned on jam jar .(250g)
  • Weight written on tea box. (500g)
  • Now show them different pack of ghee.
  • Tell them that;

Units of Mass/ Weight

  • Show the empty sack of flour to the students and ask them. “How much “kg” flour was in this sack?” (20kg)

Activity 2

  • Ask the students one by one to indicate one of the items in the classroom whose mass can be measured in grams.
  • Make a list on the board under the column heading “items whose weight can be measured in g”
  • Then ask the students one by one to indicate the one item ijn the classroom whose mass can be measured in kilograms.
  • Make a list on the board under the heading
    “items whose weight can be measured in kg”

Units of Mass/ Weight

Sum up / Conclusion

  • Sum up the concept by telling:
      • The basic unit of mass is kilogram.
      • We measure the heavy object in kilogram and the light object in grams.
      • We write “kg” for kilograms and “g” for grams.

Units of Mass/ Weight

Assessment

  • Ask the following questions to the students.
      • Which unit of mass/weight which unit of mass/weight is used to the measure the weight of earrings of gold?
      • Which unit of mass/weight is used to measure the weight of boy?
      • What is the abbreviation for gram?
      • What is abbreviation for kilogram?
      • How many grams are in 1 kilogram?
      • How many grams are in half kilogram?
      • How many grams are in quarter kilogram?
  • Visit a grocer`s shop, read and write the weight of at least five things in different packing in notebook.
  • Ask the students to solve the questions given in the textbook.

Follow up

  • Visit a grocer`s shop, read and write the weight of at least five things in different packing in notebook.
  • Ask the students to solve the questions given in the textbook.

1 thought on “Plan of Units of Mass/ Weight”

Leave a Comment