Students build the tallest tower possible out of spaghetti, tape, and place a marshmallow at the top of their tower.
-Intro to Engineering
-Understand what constraints are
-Triangles are stronger than squares
-Failure is okay
-spaghetti (10 pieces for every group)
-tape (1 ft for every group)
-marshmallows (1 per group)
Preparation and Set Up:
-arrange students in pairs
-collect necessary materials
Start the Class with an Intro to Engineering. What is engineering? What does an engineer do? Once students have a basic understanding of what engineering is, tell them we are going to do an engineering challenge!
1) Explain the activity. They will have 15 minutes to build the tallest tower out of 10 pieces of spaghetti and 12 inches of tape. The marshmallow must balance at the top of the tower. The time limit and the limited amount of materials given are known as constraints. (No you can’t eat the marshmallows. We will be measuring from to the top of the marshmallow so don’t use it as a base) 2) Split students into pairs and let them work for 15 minutes. Wander the classroom and talk about different designs. See if any groups need help. 3) When time runs out, have everyone take a look at the various tower designs. Which ones are the tallest? What did you have trouble with in this challenge? What do you think you needed to make a better tower? How did you make yours stand up? Did the weight of the marshmallow make any towers collapse? 4) Explain the difference in stability between triangle and square/rectangle structures. 5) Engineers have to work with constraints all the time. Failure is just a part of the Engineering Design Process.
Students will build towers out of a limited amount of materials that can hold up a set amount of weight (like a stack of books).
To introduce students to the engineering design process.
To teach students about sturdy structures and strong shapes.
For each student group:
18 inches of tape
5 paper clips
5 index cards
8 sheets of 8-1/2 x 11 paper
Some sort of weight to put on the tower (like a stack of books)
Preparation and Set Up:
- Arrange students into groups of 2.
- Gather materials and photocopy worksheets.
- Make a poster or handouts of the engineering design process.
The engineering design process is an eight step process that engineers use to design
1. Identify the need or problem
2. Research the need or problem
3. Develop possible solution(s)
4. Select the best possible solution(s)
5. Construct a prototype
6. Test and evaluate the solution(s)
7. Communicate the solution(s)
You can highlight any of the following vocabulary in this lesson:
Engineering design process
Begin the lesson by introducing the engineering design process. Explain how students will use the engineering design process in their lesson to construct a tower out of paper:
Identify Problem: You need to build a tower that will support a weight (stack of books).
Research: discuss as a class some ways that you might make your tower sturdy, like how to distribute the weight, what shapes might help you, etc.
Develop Possible Solutions: The class will draw out some possible designs on a sheet of papers.
Select the Best Possible solution(s): Student groups should discuss their ideas and select one design to actually build.
Construct a Prototype: Students will build their towers
Test and evaluate: Students will test their designs by placing the weight on their towers. Students can either tests their designs as they finish, or each group can test in front of the class when everyone has finished building. How much weight can the tower hold?
Communicate the solution(s): Have students share their designs. Discuss as a class the following questions:
What designs seemed to work the best?
What were some ways that towers failed?
did they tip over or crush?
What were some shapes that worked best to hold the towers?
What materials seemed to be most useful?
Redesign: In this activity students will not actually redesign their structures, but you should discuss as a class how different groups might improve their designs.
Have students redesign their towers. How does the second tower’s performance compare to the first? What were some design changes?