Design & Build Your Own City

One of the big projects I do each year with my 8th grade engineering students is to have them design and create their own city.  We start out this unit by talking about city planning, using the city they live in as an example.  We look at some of the design and planning maps and I have some of the city planners come and talk with students to explain what goes in to designing a city.

Our next step it to have the kids choose their team (3-4) and start researching information about city design to build on the knowledge they gained from our speakers.  Each group chooses a city zone to build and designs their city to scale using SketchUp (a free, online CAD program).  They plan with their group regarding what buildings should go in the zone and then determine how they will divide the work to accomplish their goal.  We work with Engneering notebooks for planning along with guide sheets to help them and work logs to keep them all on track.

Once the designs are completed, each team actually builds their zone, utilizing chipboard and a variety of other materials to create their city zone to scale.  I provide materials in the classroom, but sometimes students want something specific that i don't have and I allow them to bring that (if they clear it with me first of course!).

This portion of the project takes us several weeks.  Once all the buildings and decorations have been completed, we work together as a class to combine the buildings to create the end result of a city.  We leave it set up for a few days so that other teachers and students can "visit" the city and admire the hard work!

If you'd like the entire lesson, planning sheets, work logs and student handouts, it is available to download here.

Designing Skyscrapers

Tall buildings and modern designs are fascinating aspects of architecture and engineering, so it is no surprise that students love the idea of learning more about these as they take the role of a designer.  Studying existing buildings, learning about how they are designed to withstand natural disasters while still being aesthetically pleasing, is our starting point for the unit.  As a part of this, students choose a skyscraper of interest to research and then replicate its design using Sketchup (CAD), a free download, to create a scale model.

Empire State Building

Our next lesson lets them use what they've learned to design their own skyscraper, again to scale in Sketchup.  I love seeing the creative ideas they have!

Finally, using a budget and a limited amount of time (just like real engineers!), teams construct a skyscraper together.  The finished product needed to be to scale, and able to withstand both wind and earthquake!

If you'd like to use this lesson with your class, you can obtain the full lesson plan here.

Building a Musical Instrument

One of my students' favorite units is our unit on the Physics of Sound.  Middle schoolers LOVE music, whether they are in the Fine Arts program or just active listeners to their MP3's.  So, when I tell them they are going to have a chance to learn more about those sounds and then design an instrument of their own, they're pretty excited!

We start with learning the physics of sound by doing several online simulations along with some research.  Then, with that knowledge, we learn about sound waves using a Slinky toy.  Be prepared to address potential silliness with this BEFORE the lab.  We always review the difference between having fun and being immature :)  

Designing the instruments, requires some research, but most students jump right in to figuring out how their instrument can be the best.  The instrument needs to be able to play three different notes and repeat those notes three times.  YouTube videos are great for this if your school has access to that.

We used a variety of recycled materials - some that I provided in the classroom and others that students chose to bring themselves.  During the planning and design phase, students draw their project and create a materials list before construction begins.

One of our more interesting final products was this carrot recorder:

If you'd like the full lesson, it is available here to download.