Safe Landing
This modified version of the classic egg drop project challenges students to identify different problems, any of which - if properly solved - can achieve the same goal (the cup lands upright with the ping pong ball inside). Students will use the Duncker Diagram introduced in this unit to explore the initial problem (The large impact force experienced during the free-fall landing causes the ball to bounce out of the cup) and a reframed problem, brainstorming solutions for each using the solution development strategies from module 3.
Learning
Outcomes
Problem Identification
Reframing
Design and build a device that ensures the cup is positioned upright with the ball inside after it lands.
Constraints
-
Cup lands upright
-
Ball remains inside cup
-
Must land in a 2 ft diameter circle
-
No lids. Ball must be easy to load and unload
Objective
Brainstorming
Solution Development
Materials
$2/each
Materials
1
Quantity
Cost
Ping Pong Ball
$0
Cup
1
$0
Cardboard (5”x7”)
1
$20
Tape
24"
$1/inch
Printer Paper
4
$5/each
Balloon
4
$20/each
Popsicle Sticks
5
$5/each
Plastic Bag
1
$20
Weights (nuts, washers)
10
$1/each
String
Cotton balls
Rubber bands
10
10
10 ft
$2/each
$1/foot
Sample Student Work
Resources
Rubric
Checklist
Reflection Slides Template