Students measure weight, height, and length with the help of a balance, scales, rulers, yardstick, and tape measures. They use their TI-10 to find proportions and to round off answers to whole numbers.

Before the Activity

See the attached PDF file for detailed instructions for this activity

Print pages 137 - 147 from the attached PDF file for your class

During the Activity

Distribute the page to the class.

Follow the activity procedures:
Activity A:

Discuss the characteristics (height, weight, speed, length, strength etc.) of animals, and read the book: Biggest, Strongest, Fastest, to the class

Activity B:

Compare the weight (in pounds) of an average adult male to an elephant

Use the calculator to determine the approximate number of adult males whose combined weight equals the weight of one elephant

Activity C:

Reread the book, observe that an ant can lift 5 times its own weight

Calculate the weight a 60-pound adult can lift if he were as strong as an ant

Determine the number of books that will weigh 300 pounds

Activity D:

Tear a length of tape that measures the height of a student

Use a ruler to mark 12-inch sections and number them

Calculate the height of the student

Use the calculator to determine the number of students whose combined height will equal the height of the giraffe

Activity E:

Measure the wall length and use the calculator to get the perimeter of the classroom

Determine the length of the tentacles of a jellyfish

Activity F:

Convert feet to inches and find the length of the room

Note a snail travels at a speed of 8 inches per minute

Find the time taken by the snail to cross the room

Activity G:

Note a flea can jump 130 times its height

Determine how high a 4-foot child can jump if he could jump like a flea

After the Activity

Review student results

As a class, discuss questions that appeared to be more challenging