The goal of this presentation is to get students to think before being told. I hope they will look at these pictures and notice the up/down, increase/decrease, positive/negative of a situation and be able to quickly and easily write an integer to represent the scenario.
27. Positive numbers can be
written with a plus sign in
front of the number. However
you do not have to use any
sign and can name the integer
by speaking the number
without saying the word
“positive”.
30. •My mom gave me $5.
•I lost the $5 my mom gave me.
•The mountain is 5 miles above
sea level.
•After lunch the temperature
dropped 15 degrees.
31. Which situation would represented by
a negative integer?
a. A mountain climber descended 50
feet.
b. The price of the bike increased
$100.
c. Jimmy Sue won $50.
d. The elevator went up 5 floors.
