Substraction -Without Changing - Revision history

Rosalia at 04:48, 15 October 2009

2009-10-15T04:48:26Z

WikiAdmin: 1 revision

2009-07-20T04:03:38Z

1 revision

WikiAdmin at 20:00, 19 July 2009

2009-07-19T20:00:00Z

Rosalia at 04:44, 10 March 2009

2009-03-10T04:44:57Z

WikiAdmin: New page: ==Substraction -Without Changing== === Age === 3-6
=== Materials ===
Unlimited Golden Beads (no more than 9 thousands).
Large Number Cards.
At least 2 sets o...

2008-10-22T05:19:03Z

New page: ==Substraction -Without Changing== === Age === 3-6 === Materials === <ol><li>Unlimited Golden Beads (no more than 9 thousands).</li><li>Large Number Cards.</li><li>At least 2 sets o...

New page

==Substraction -Without Changing==
=== Age ===
3-6
 
=== Materials ===
<ol><li>Unlimited Golden Beads (no more than 9 thousands).</li><li>Large Number Cards.</li><li>At least 2 sets of Small Number Cards.</li><li>At least 2 trays and unit pots fro carrying.</li><li>An operational mat.</li><li>A floor mat.</li></ol>
 
=== Preparation ===

 
=== Presentation ===
<ol><li>This is a group activity. Invite the children to lay  out the Large and Small Number cards on the floor mat.</li><li>Meanwhile, Directress sets up the 'Bank' and lays out the operational mat on a separate table.</li><li>The Directress sets up the subtraction question, e.g. 3766 - 2654. Child A is asked to bring the large number cards and the corresponding Golden Beads for 3766. These are placed on the operational mat in their places and the cards at the side as in previous exercises.</li><li>Child B is asked to take away 2654 beads from the Golden Beads laid on the mat. Child B does that and places it on her tray. The corresponding small number cards is fetched an placed on the tray as well.</li><li>Directress asks, "What is the total left on the operational mat?" Child A then counts the remainder left on the mat by bringing the beads down to the bottom of the mat as she counts them, and the corresponding small number cards is fetched as well.</li><li>At the end of the operation, tell the children, 'we had 3766 and we subtracted 2654. What we have left is 1112".</li></ol>
 
=== Control Of Error ===
Directress guided.
 
=== Points Of Interest ===

 
=== Purpose ===
<ul><li>To give children a concrete experience of subtraction.</li></ul>
 
=== Variation ===

 
=== Handouts/Attachment ===
 

[[Category:Mathematics]]

@@ Line 22: / Line 22: @@
 #This is a group activity. Invite the children to lay&nbsp; out the Large and Small Number cards on the floor mat.
 #Meanwhile, Directress sets up the 'Bank' and lays out the operational mat on a separate table.
-#The Directress sets up the subtraction question, e.g. 3766 - 2654. Child A is asked to bring the large number cards and the corresponding Golden Beads for 3766. These are placed on the operational mat in their places and the cards at the side as in previous exercises.
+#The Directress sets up the subtraction question, e.g. 3766 - 2654.
-#Child B is asked to take away 2654 beads from the Golden Beads laid on the mat. Child B does that and places it on her tray. The corresponding small number cards is fetched an placed on the tray as well.
+#Child A is asked to bring the large number cards and the corresponding Golden Beads for 3766.
-#Directress asks, "What is the total left on the operational mat?" Child A then counts the remainder left on the mat by bringing the beads down to the bottom of the mat as she counts them, and the corresponding small number cards is fetched as well.
+#These are placed on the operational mat in their places and the cards at the side as in previous exercises.
 #At the end of the operation, tell the children, 'we had 3766 and we subtracted 2654. What we have left is 1112".
@@ Line 51: / Line 56: @@
 <br>
-[[Category:Mathematics]][[Category:Mathematics_3-6]]
+[[Category:Mathematics]] [[Category:Mathematics_3-6]]

← Older revision		Revision as of 20:00, 19 July 2009
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−	[[Category:Mathematics]]	+	[[Category:Mathematics]][[Category:Mathematics_3-6]]

← Older revision	Revision as of 04:03, 20 July 2009
(No difference)