37
Getting Even
Elementary school
(upper grade)
• • • • • • • • • • • • • • • • • • • • • Objective • • • • • • • • • • • • • • • • • • • • •
Use some common properties of numbers.
Explore a variety of situations that lead to the expression of relationships.
• • • • • • • • • • • • • • • Explanation of the activity • • • • • • • • • • • • • •
A game of chance to compare the relationship between odd and even numbers.
By working on this activity, students will reinforce their understanding of odd and even
numbers. More able students could develop their skills in using algebra to prove generaliza-
tions.
• • • • • • • • • • • • • • • • • Using the calculator • • • • • • • • • • • • • • • • •
Calculator functions used: Addition
A game for two players
The first player enters any number into his/her calculator
without showing it to the other player.
For example, 298.
The second player then enters a number into his/her
calculator without showing it to the other player.
For example, 55.
The players then show each other their numbers and add
them. If the answer is even the first player scores
1
point; if
the answer is odd, the second player scores
1
point.
298
55
The first player to score
1
0 points is the winner.
Press the following buttons and then start operation.
298+55=
DEG
DEG
DEG
Summary of Contents for EL-531RH
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