Changes

#Based on visual inspection and counting, determine the number of apples and which group is larger or smaller or if both are equal.

#Based on visual inspection and counting, determine the number of apples and which group is larger or smaller or if both are equal.

<br>'''Questions for discussion:'''<br>

<br>'''Questions for discussion:'''<br>

How can you describe the two groups? [ Words – red, large, small, more, less]

*How can you describe the two groups? [ Words – red, large, small, more, less]

Which words are being used first – more or less, dozen, kilo

*Which words are being used first – more or less, dozen, kilo

What is the first thing you want to do when you see the two groups?

*What is the first thing you want to do when you see the two groups?

The students may start counting – but ask them for other ways of understanding the quantity (trying to do a one-to-one correspondence between the two groups of apples)

*The students may start counting – but ask them for other ways of understanding the quantity (trying to do a one-to-one correspondence between the two groups of apples)

If for every apple in one group, I have one apple in the other group, then I do not need to count at all.  Can this one to one be done with anything other than apples? [ children, ribbons, stones].  This can bring about the idea that quantity is something that is present in many different objects

*If for every apple in one group, I have one apple in the other group, then I do not need to count at all.  Can this one to one be done with anything other than apples? [ children, ribbons, stones].  This can bring about the idea that quantity is something that is present in many different objects

With this mapping can I say more or less or equal?

*With this mapping can I say more or less or equal? Now represent this by numbers; and discuss the difference between the two comments below:  “There are 6 apples in group 1” and “This is the 6th apple in the first group”

Now represent this by numbers; and discuss the difference between the two comments below:  “There are 6 apples in group 1” and “This is the 6th apple in the first group”

Can these numbers represent only apples or anything else?  Does this number “2” mean the same thing when I am counting dogs or notebooks?

Can these numbers represent only apples or anything else?  Does this number “2” mean the same thing when I am counting dogs or notebooks?

 

#Manipulating the quantities.  By physically combining and representing them in numbers, introduce the idea of mathematical operations of addition and subtraction

5. Manipulating the quantities.  By physically combining and representing them in numbers, introduce the idea of mathematical operations of addition and subtraction

Part 1

Part 1