Investigations
  1. Help your child find an item in your home that has a mass of one kilogram. For example, your child might be able to find food packages that are labelled ‘1kg’ or ‘1000g.’ A litre of milk, water, or juice also has a mass of about one kilogram.
  2. After you have found an item that has a mass of one kilogram, have him or her find items that have a mass that is:
    • less than one kilogram
    • about one kilogram
    • greater than one kilogram

Have your child record the items on a chart like the one below:

Less Than 1kg About 1kg More Than 1kg

 

 

 

 

 
  • Which items were harder to find? Why?
  • (Less than one kilogram, about one kilogram, or greater than one
    kilogram)
  • What surprised you about the mass of some objects?

Additional Comparing Ideas can be found here.

(Adapted from mathies.ca)