Wednesday, February 4, 2009

Day 4 Numeracy lesson (Addition of Whole Numbers)











The student will be shown an overhead of Albrect Durer's "Melancholia", which contains a magic square.   They will then be shown a blow up of the hidden magic square and explained how a magic square works.  They will be told that in order to solve a magic square they will have to be able to add numbers still within the base ten system.

Students will then be given a stack of play money in multiples of over ten. They are to count the bills and place that number in the appropriate place value column, even if that number is larger than 10. 
students will be led to rediscover that our number system is a base 10 system, and when a place value has reached 10  or more, the number of 10's must be carried over to the next column.  

The students will then be taught the term "sum", and learn that 3 + 5 = 8 can be read, "the sum of 3 and 5 is 8".

Students will use the place value sheets to add the following numbers:

37 + 28,  32 + 57 + 14, 139 + 72

Students will then try to solve the following magic square as a class:  (at top)

Problems:  McKeague p.27

1.3 (11, 12, 17,  18, 23, 24, 29, 30, 35, 36, 41, 42, 47, 48)

Two additional Magic Squares for fun.






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