we are not physically present before each other, we can't shake hands still we can talk and discuss issues. i often used as an adjective. i proved a great help of employees ,teacher and students during lockdown. people have become accustomed to me now. who i am?
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One way is to have the students actually simulate the shaking of hands.
Shake hands with everyone in the room. How many handshakes occurred? How did you keep track of your handshakes to make sure that you shook everyone’s hand exactly once? What was the total number of handshakes that occurred in the room?
[This can be cumbersome, confusing and time-consuming but is workable if the group is not too big. Sometimes students do not come up with the correct 300 handshakes.] You might to use a subset of the class if you actually wanted to model the problem.
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