Absolute Value Discovery Estimating Age Absolute Value Discovery

Hold old are they????? Look at the image of the celebrity and estimate their age. Write your estimate on the chart under the estimated age column. Write their actual age in the actual age column. Calculate the difference to determine how close your estimate was. The person with the closest estimate to actual age is the winner.

Age estimation chart Name Estimated Age Actual Age Difference 1. 2. 3.   2. 3. 4. 5. 6. 7.

1. Miley Cyrus

2. Betty White

3. Jake Gyllenhaal

4. Jennifer Lawrence

5. Woody Harrelson

6. Taylor Lautner

7. Will Smith

Age estimation chart 22 34 24 53 46 1. Miley Cyrus 2. Betty White Name Estimated Age Actual Age Difference 1. Miley Cyrus    22 2. Betty White  92 3. Jake Gyllenhaal 34 4. Jennifer Lawrence  24 5. Woody Harrelson  53 6. Taylor Lautner 7. Will Smith  46

Reflection Questions If Jim guesses Will Smith was 50 and Sue guesses he is 42, who is closer to his actual age of 46? Who would win? Who thinks that Jim and Sue are tied? Answer yes or no and explain your answer. Absolute value of a number is its distance from zero on an number line. How is this like guessing someone’s age?

Reflection Question Responses Jim’s guess is 4 years over his actual age. Sue’s guess is 4 years under his actual age. Neither person wins. It is a tie. Both people guessed 4 years from Will Smith’s actual age. Even though Jim’s guess is over, he is still 4 years from Will’s actual age. Sue’s guess is under but not a negative number. It is also 4 years from Will’s actual age. Guessing someone’s age is very similar to a number’s absolute value. A guess can be either over or under the person’s actual age but is still a positive number (the distance from the person’s actual age). Just like absolute values are always a positive number (counting the distance from zero on a number line).