RIESI, Administrators
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==Prerequisites/Instructions, if any==
==Prerequisites/Instructions, if any==
==Multimedia resources==
==Multimedia resources==
==Website interactives/ links/ simulations==
==Website interactives / links/ simulations==
==Process (How to do the activity)==
==Process (How to do the activity)==
[[File:32 squares.png|400px|link=]]
[[File:32 squares.png|400px|link=]]
*Print 32 squares of this.
*Above is a sheet with 10 vertical lines and 10 horizontal lines. Taken together, we can see 10 'cells' in each row and 10 'cells' in each column.
*Print 32 sheets of this '10 * 10' squares.
*Distribute into 8 groups of 4 children each.
*Distribute into 8 groups of 4 children each.
*Each group will get 4 squares.
*Each group will get 4 such sheets.
*The value of 4 squares will be 4x100 = 400
*The value of 4 squares will be 4x100 = 400
*Each group must cut the solid lines; 1 square will have 10 strips. These are tens. So each square has 10 “tens” (They can either *cut, or work without cutting – up to the children)
*Each group will cut the sheets such that
*Each one of those tens will have 10 ones.
*They can cut 2 sheets along the solid (darker / vertical) lines; here each sheet (10*10 square) will have 10 such "strips". These are "tens", each strip has 10 cells. So each square has 10 “tens” (They can either *cut, or work without cutting – up to the children)
*They can cut the other two sheets along both solid (darker / vertical) and the less dark / horizontal lines
*Each one of those sheets will have 100 cells
== Developmental points/questions ==
== Developmental points/questions ==
'''II. Abstraction from here (1 period)'''
'''II. Abstraction from here (1 period)'''
Now let us assume children have 9 such squares.
In the previous activity we gave 4 sheets to students to actually cut and play with. Now let us assume children have 9 such squares.
In each group, how many hundreds are possible ? – 9
In each group, how many hundreds are possible ? – 9
In each group, how many tens are there ? – 9 x 10 = 90
In each group, how many tens are there ? – 9 x 10 = 90
In each group, how many tens are there ? – 90 x 10 = 900
In each group, how many ones are there ? – 90 x 10 = 900
'''1-9 ones are possible; 10 ones means one ten. Ten ones is the same as one ten'''
'''1-9 ones are possible; 10 ones means one ten. Ten ones is the same as one ten'''
Use the given digits without repetition and make the greatest and smallest 4-digit numbers. Note that 0753 is a 3 digit number and is therefore not allowed.
Use the given digits without repetition and make the greatest and smallest 4-digit numbers. Note that 0753 is a 3 digit number and is therefore not allowed.
[[File:gretest and smallest.png|400px|link=http://karnatakaeducation.org.in/KOER/en/index.php/File:Gretest_and_smallest.png]]
[[File:gretest and smallest.png|400px|link=]]
#Now make the greatest and smallest 4-digit numbers by using any one digit twice.
#Now make the greatest and smallest 4-digit numbers by using any one digit twice.
Hint: Think about which digit you will use twice.
Hint: Think about which digit you will use twice.
[[File:3 digit numbers.png|400px|link=http://karnatakaeducation.org.in/KOER/en/index.php/File:3_digit_numbers.png]]
[[File:3 digit numbers.png|400px|link=]]
#Make the greatest/ smallest 4-digit numbers using any 4 different digits with conditions as given
#Make the greatest/ smallest 4-digit numbers using any 4 different digits with conditions as given
[[File:4 different digits.png|400px|link=http://karnatakaeducation.org.in/KOER/en/index.php/File:4_different_digits.png]]
[[File:4 different digits.png|400px|link=]]
==Question Corner==
==Question Corner==
'''To link back to the concept page'''
'''To link back to the concept page'''
[[Category:Number system]]
[[Category:Number system]]
