Embedded Files
MA2-1WM uses appropriate terminology to describe, and symbols to represent, mathematical ideas
MA2-3WM checks the accuracy of a statement and explains the reasoning
MA2-12MG measures, records, compares and estimates the masses of objects using kilograms and grams
Lessons One - Three
Lessons One - Three
Activity One
Activity One
Make a list of things that you would measure in kilograms.
- Now choose 4 items from these different materials:
counters
cotton wool
sand
coins
leaves
ones blocks
interlocking cubes
bark chips
shapes
- Fill a cup with one of your materials. Then tip the contents into a ziplock bag and seal it. Do the same with 3 other materials.
- Compare two bags at a time by holding one in each hand, and deciding which is heavier. Compare all the bags until you can put them in order from lightest to heaviest.
Which is the lightest?
Which is the heaviest?
How do you know?
Did any bags seem to be about the same mass?
- Then check your suggestion by weighing the bags on the scales, and create a chart for your results.
MUST DO:
MUST DO:
Heft your bags to compare and order them from lightest to heaviest.
Draw the table in your books (from below) and record what you think is this order on the top line.
Weigh each bag on balance scales against grams and record how much they weigh on the table.
Was your hefting accurate?
Write the following sentence under your table and add the word correctly or incorrectly:
We estimated the order of each bag's mass __________________.
We estimated the order of each bag's mass __________________.
Was your original order correct, or did you need to change the order of some items?
Was your original order correct, or did you need to change the order of some items?
Discuss:
Each bag contained a cupful. Why did the masses differ if the materials all took up the same space?
To think about: Which would weigh more - a kilogram of feathers or a kilogram of bricks? Explain.
To think about: Which would weigh more - a kilogram of feathers or a kilogram of bricks? Explain.
Complete this chart:
Activity Two
Activity Two
Complete the following activities.
Comparing-classroom-objects-mass-activity-sheet_ver_7.pdfMass-investigation.pdfComparing-fruit-mass-activity-sheet_ver_5.pdfThis worksheet is in Seesaw
This worksheet is in Seesaw
Grams and Kilograms
Grams and Kilograms
We measure the mass of objects by using grams and kilograms.
It takes one thousand grams (1 000 grams) to weigh the same as 1 kilogram.
Watch the following videos and have a go at completing some of these worksheets on Seesaw.
Complete as many of these worksheets on Seesaw as you can:
Complete as many of these worksheets on Seesaw as you can:
ow-many-grams-activity-sheet-_ver_3.pdfEnvision U4 L6 practice.pdfConversions worksheet.pdfBalance the Scales.pdfPage updated
Report abuse