Only Two at a Time

Computing · Page 1 of 2

Name Date
DIRECTIONS: Look at two cards at a time. Write the one that comes first.
7
and
3
  →   which comes first?
4
and
9
  →   which comes first?
6
and
6
  →   which comes first?
The same? Either one can go first.
Now six cards. Put them in order, smallest first. Still only two at a time.
5
2
8
1
9
3
How did you do it? Write it so someone else could follow it.

Everybody Does It Differently

Computing · Page 2 of 2

DIRECTIONS: Watch two other people put the same six in order.
Person 1: what did they do?
Same as yours?   ____________
Person 2: what did they do?
Same as yours?   ____________
Everyone got it right, different ways. A machine can't "do what seems sensible". It needs exact steps: the next sheet.