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The
Wheat and Measurement activity can be used for
both Primary and Secondary levels. At Primary
level it can be used to introduce Area, measuring
weights, place value, data collection and analysis.
At Secondary level can also be used in Maths/Science
area to demonstrate ratios and expressing large
numbers in standard form. (refer to Extension
work)
Other
activities:
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Investigate
how number of grains in a kilogram of wheat
compare to other grains, for example rice. |
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Use
photographs in the book 'Grain Harvest Equipment' by S Jackson (see resources) as clues to list equipment used
on a wheat farm. |
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What
other equipment would be needed? |
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Investigate
safety features of this equipment. |
Sample
solutions for student worksheets questions 2 -
5:
|
Estimate
of grains in 10cm square
|
Weight of grains in 10 cm square (g)
|
Number of grains in 10 cm square
|
|
Variety
of answers
|
Between
20g and 25g depending on density of grain |
Between
600 and 700 grains. Depending on size of wheat
grain. |
For
question 6:
| 20g |
of
wheat equates to |
600 |
grains |
| (x5) |
|
(x5) |
|
| 100g
|
of
wheat equates to |
3000 |
grains |
| (x10)
|
|
(x10) |
|
| 1000g
|
of
wheat equates to |
30,000 |
grains |
| (1kg) |
|
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Approximately 30,000 grains in 1kg of wheat (in
standard form 3 x 10(squared) grains in 1kg of
wheat)
Extension
work:
Based
on the work done in this activity, approximate
how many grains the 28 tonne field bin could hold?
(Note: 1000kg = 1 tonne)
| 1kg |
of
wheat equates to |
30,000 |
grains |
| (x1000) |
|
(x1000) |
|
| 1
tonne |
of
wheat equates to |
30,000,000 |
grains |
| (x28)
|
|
(x28) |
|
| 28
tonnes |
of
wheat equates to |
840,000,000 |
grains |
Approximately
eight hundred and forty million (840,000,000)
grains in the 28 tonne field bin. Written in standard
form, approximately
8.4 x 10(to the power of 8) grains in the 28 tonne
field bin.
Resources:
Wheat
and Measurement activity based on "Wheat" and
"Grain Harvest Equipment" by Susan Jackson, Avalon
books.
Other
titles in series include: Farms, Dairy Cows, Shearing
Time, A Boom Sprayer, A Sheepdog, Canola, Burning
Stubble, Lambing Time, Weaning Lambs and Clover
Hay.
Cost:
$9.95 per book or $99.00 per set of 12 plus
postage and handling (min $6)
Interested ??.......... then contact:
Susan Jackson PO Box 98, St Arnaud Victoria,
3478
PH: (03) 5499 8269 - FAX: (03)5499 8210
E-mail: kensusanjackson@hotkey.net.au |
»
go
to Wheat and Measurement - a student worksheet
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