Play Plan : Place Value Cards
Material: Braille Place value cards
Prerequisites: Counting, number recognition, 2, 3, 4 digit number place value, addition, subtraction
Number of players: Any number
Game Overview and Basic Rules for Play:
Mann card (place value cards): When we play with number cards and ask children to take number 12 and show. They tend to take number card 1 and number card 2 and join them together by holding number 1 and 2, they say it is number 12, but it is not.
In order to remove this misconception, we use Mann cards which have individual number cards from 1 to 9, number cards from 10 to 90, number cards from 100 to 900.
Now if we ask for number 12, then they should take number card 10 and then number card 2.Hence, Mann cards(place value cards) help visualizing the place value of numbers.
- Expanding a number with respect to place value
- Comparing numbers
- Forming greatest and smallest numbers using given digits
- Reading and writing multi-digit numbers
- Quantity sense
Also known as Gattegno cards. Consist of sets of units, tens, hundreds, thousands, ten thousands and lakhs cards to make up to any 6 digit number. Helps children to develop quantity value of the numbers on the basis of expanded notation.
- Give them the cards from 1 to 3 digits Braille place value cards. Let them explore and find out what they are.
- Then explain to them that there are 3 different cards, having single digit, 2 digit and 3 digit.
- Now, ask them to show any 2 digit number, say 23. Observe and ask each of them, which are the cards they are holding in order to make 23.
- Similarly, try more 2 and 3 digit numbers with the children.
- In this session, each of them give a different 2 digit number for which they have to pick the corresponding place value card and show it to the teacher.
- Then ask them, who are having the greatest and smallest number among themselves.
- Similarly, do it with a 3 digit number. Also let them read and write the number whatever is given to them.
- Note: The above activity can be done for higher grades for 4, 5, 6 digit numbers and so on using Braille place value cards.
Session 3: (KLI – SA1.3A)
- Make a group of 2, shuffle all the place value cards and keep it in a container/bag. Let the students choose any three number cards.
- After that provide different methods to add or subtract numbers. Like, in method 1 they will make use of bundles of hundreds, tens and ones, in method 2 they will use the standard algorithm of addition or subtraction in which regrouping is done while adding and in method 3 they will come up or use their own algorithm. So that they can choose whichever methods they would feel they can do the computation but it should be a mathematically correct process.
- Ask them how they added the numbers. Exchange their ideas among themselves.
- Similarly, ask them to subtract numbers.
Session 4: (KLI – SC1.3D)
- Arrange the students so that they are standing in a circle. Instruct them to count backwards from 1000 down to 100. Have each student call out one number in the sequence. When the target number (in this case, 100) is reached, the student calls out “zap!” and the person next in the sequence sits down. Continue the activity with the students commencing the backward count again. This process continues until one student remains standing.
- Stop in the middle and say before they reach the last number ask them, who would sit next then check if the guess was right or not. When they again start the new round ask the person who is sitting to guess the person who would sit next by giving the number 900 card to that person. Continue in the same manner until one student remains standing with a 100 number card.
- Based on their guess, the facilitator will hand over 1000 number card to that person. Then the game continues.
- Similarly, do the same thing for forward counting. But in forward counting the first card given is 100 then 200 then so on. Continue in the same manner until one student remains standing with a 1000 number card.
Session 5: (KLI – SA3.2F)
- Make a group of 2. Give all place value cards from 1 to 9, 10 to 90 and 100 to 1000 to each group.
- Give them two numbers to add for which they can choose number cards given to them. As well as numbers to subtract.
- Example 1: 423 + 560
Then the student will take 400 card + 500 card = 900 cards, card 20 + card 60 = card 80, card 3.
- Example 2: 560 – 423
Then the student will take 500 card – 400 card = 100 card, card 60 – card 20 = card 40, card 3 – card 0 = card 3.
- Do it for 4 to 5 rounds for both addition and subtraction.
- Whichever group is able to give more correct answers by showing correct cards for the questions given by the teacher/facilitator will be the winner.
- Later, ask them if they have any other methods to add and subtract numbers. If there are, ask them to explain.
- Ask the difference between choosing number cards and the other ways to add two numbers or subtract numbers.