Numeration of the Decimal Sytem
Exercise 3: Group Game Identifying Numerals
MATERIAL:
 The large number cards
 A tray (approximately 10 inches by 18 inches)
PURPOSE:
 To give the children practice in reading and composing numerals
to 9999
AGE:
 4 and one half years and older
EXERCISE:
 This is a group exercise for 3 to 5 children who have all reached
this stage.

 The children help the teacher lay out the large number cards on a
table so that they can all be seen. The cards are laid in
columns, unit cards on the right and thousand cards on the left.
The children stand in front of the table at all times so that they see
the number cards the right way up. The teacher can stand behind the
table. Should any children come to watch, they too must stand in
front of the table. The teacher places a number card on the tray,
for example, "100" and shows it to the children. She asks, "Who
knows how much this is?" Any child may answer. She returns the
card to its place and puts another on the tray for someone to
identify. The exercise continues in this way. (Note: At first just one number card is
placed on the tray for identification.)

 Another day the exercise could be reversed. The teacher
could ask the children to select number cards and put them on the
tray. She would ask, "Who can put 2000 on the tray?" "Who
could find 500?" etc. Again there is no taking turns, but rather
everyone joins in all the time.
 There will need to be much practice over a period of time.
When the children are doing the work easily, the teacher will compose
numerals of more than one hierarchy by superimposing different
hierarchies. An example of this is "4300." If the children
are hesitant about reading the numeral, the teacher should separate the
cards and spread them out on the tray. She will then superimpose
the numerals again, naming them as she does so, "This is four
thousand, this is three hundred, so we put them together to make four
thousand, three hundred." The exercise is carried out many times
on subsequent days, until the children can compose any numeral they are
asked for, or read any numeral composed by the teacher.
teacher
children