TEACHING SUGGESTIONS
In-Class Game
Prime Round
Separate the class into three teams of eight to ten students.
•
Prime Round master, p. 16
Make a copy of the Prime Round master on page 16 for each student in the
class. Have students sit or stand in a circle. Because the teams will shout out
their numbers, you may want to play this game outside or in a large room,
like a gymnasium.
•
•
Students begin counting in a clockwise direction.
•
At this point, the counting direction reverses, going counterclockwise, so that
the person who said “1” now says “prime” instead of “3,” and so on.
•
The game continues in this
manner. When a student
says the wrong number,
forgets to say “prime,” or
doesn’t say anything
(especially when the
counting reverses direction),
the game starts over with
this person saying “1.” After
a few practice rounds, you
may want to eliminate
players who make mistakes.
When it is a student’s turn to say his or her number and it is a prime
number, the student says “prime” instead.
The diagram at the right
indicates the correct moves up
to 30 for an eight-person team.
© Glencoe/McGraw-Hill
1
prime (3)
prime (7)
prime (23)
22
24
prime (17)
21
25
(Students)
16
18
20
26
prime (11)
15
prime (19)
27
15
prime (2)
4
6
8
prime (5)
9
prime (13)
prime (29)
10
12
14
28
30
Mathematics: Applications and Concepts, Course 2
Name_____________________________ Date_____________
In-Class Game
Prime Round
Work with your team.
•
•
Begin counting in a clockwise direction.
•
At this point the counting direction reverses, going counterclockwise, so
that the person who said “1” now says “prime” instead of “3,” and so on.
•
The game continues in this manner. When a person
When it is your turn to say your number and it is a prime number, you say
“prime” instead.
•
•
•
says the wrong number,
forgets to say “prime,” or
doesn’t say anything (especially when the counting reverses direction),
the game starts over with this person saying “1.”
© Glencoe/McGraw-Hill
16
Mathematics: Applications and Concepts, Course 2