Numeration of the Decimal System
Exercise 4
Group Game Matching Numbers and Quantities
MATERIAL:
 9 golden bead units
 9 ten bars
 9 hundred squares
 9 thousand cubes
 A set of large number cards
 A felt lined tray
 A large green felt mat
PURPOSE:
 To combine the written symbols with the quantities
AGE:
 4 and 1/2 to 5 1/2 years
EXERCISE:
 A group exercise for a few children

 The large number cards are laid out on one table in four columns
with units on the right and thousands on the left. The golden
beads are set out in sequence on a green felt mat on another
table. Only one hierarchy at a time is used at first. The
teacher puts a quantity, two hundred squares, for example, on the
tray. She shows it to the children and asks how much it is.
When the children say, "200", she asks who would like to take the tray
and put the numeral "200" by the quantity. A child takes the
tray, finds the "200" card, and puts it beside the squares on the
tray. The beads and card are replaced. The teacher makes
another quantity and the children tell her the amount she has
made. A child finds the corresponding numeral and so on.

 The exercise can be reversed another time. The teacher can
put a card on the tray, for example "3000." The children read it
and a child fetches three thousand cubes.

 When the children are doing the work easily, the teacher can
compose quantities using more than one hierarchy. The children
tell her what she has made and someone fetches the corresponding
numeral, or the teacher makes a numeral and a child fetches the
corresponding quantity. (Note:
At this time the children are still using the number of tens. For
example, "One thousand, three hundred, two tens, three.")

 The children will need to practice until they finally reach the
point where they can make any quantity or read any numeral up to 9999
without hesitation.


