Showing posts with label class 3 Activity 2 identify the even or odd number. Show all posts
Showing posts with label class 3 Activity 2 identify the even or odd number. Show all posts

Tuesday, October 10, 2023

class 3 Activity 2 identify the even or odd number

Lab Activity-2

To identify a number as an even number or an odd number.

Procedure:

Step 1: Pick up a few marbles and count them.

Step 2: Try to arrange them in pairs.

Step 3: Are you left with any unpaired marbles? [Fig. 2(a)]

Step 4: Stick a few bindis on a page of your notebook as shown in Fig. 2(b). Step 5: Count the number of bindis and record it.

Step 6: Draw boundaries around pairs of bindis as shown in Fig. 2(b), so that no bindi is paired twice.

Marbles

tie

Fig. 2(a)

Fig. 2 (b)

Observations:

1. How many marbles did you count? 
2. Was any marbles left after pairing in Step 3. If yes, the number was

3. How many bindis did you stick?

4. Are you left with any unpaired bindi after pairing? Yes/No 5. Is the number of bindis even or odd?

6. Take a number (say) 36? Is it even or odd?

Note: If the total number of bindis can be paired then we say that the bindis are even in number. If any one of the bindis remain unpaired, then we say that the bindis are odd in number.

Extension: What about the next number?

1. Take numbers 1 to 30 and classify them as even or odd numbers. 
2. A given number of beads may be distributed in two groups and then the concept of even / odd numbers can be strengthened.

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