Posts Tagged “engineering”

The President’s Council of Advisors on Science and Technology prepared a report (September, 2010) with the following recommendations:

(1) STANDARDS: SUPPORT THE CURRENT STATE-LED STEM ReportMOVEMENT FOR SHARED STANDARDS IN MATH AND SCIENCE

(2) TEACHERS: RECRUIT AND TRAIN 100,000 GREAT STEM TEACHERS OVER THE NEXT DECADE WHO ARE ABLE TO PREPARE AND INSPIRE STUDENTS

(3) TEACHERS: RECOGNIZE AND REWARD THE TOP 5 PERCENT OF THE NATION’S STEM TEACHERS, BY CREATING A STEM MASTER TEACHERS CORPS

(4) EDUCATIONAL TECHNOLOGY: USE TECHNOLOGY TO DRIVE INNOVATION, BY CREATING AN ADVANCED RESEARCH PROJECTS AGENCY FOR EDUCATION

(5) STUDENTS: CREATE OPPORTUNITIES FOR INSPIRATION THROUGH INDIVIDUAL AND GROUP EXPERIENCES OUTSIDE THE CLASSROOM

(6) SCHOOLS: CREATE 1,000 NEW STEM-FOCUSED SCHOOLS OVER THE NEXT DECADE

(7) ENSURE STRONG AND STRATEGIC NATIONAL LEADERSHIP

The report begins with this summary of the importance of STEM:

The success of the United States in the 21 century – its wealth and welfare – will depend on the ideas and skills of its population. These have always been the Nation’s most important assets. As the world small measure by the effectiveness of science, technology, engineering, and mathematics (STEM) education in the United States. STEM education will determine whether the United States will remain a leader among nations and whether we will be able to solve immense challenges in such areas as energy, health, environmental protection, and national security. It will help produce the capable and flexible workforce needed to compete in a global marketplace. It will ensure our society continues to make fundamental discoveries and to advance our understanding of ourselves, our planet, and the universe. It will generate the scientists, technologists, engineers, and mathematicians who will create the new ideas, new products, and entirely new industries of the 21st century. It will provide the technical skills and quantitative literacy needed for individuals to earn livable wages and make better decisions for themselves, their families, and their communities. And it will strengthen our democracy by preparing all citizens to make informed choices in an increasingly technological world.

Chapter 5 focuses on teachers and begins with this statement:

Anyone who has set foot in a classroom knows that teachers make a huge difference in the lives of their students. While not everyone can recall the influence of a legendary teacher like Jaime Escalante, many people have stories about the crucial role that a teacher played in sparking their passion for a subject, teaching them a lifelong skill, or helping them surmount an obstacle. Indeed, most people who work in STEM fields or who simply have an interest in STEM can point to teachers who excited about them about the beauty and power of mathematics, the wonders of science, or the power of technology – and who helped them learn that they could gain mastery of these subjects. Sadly, though, many adults also point to experiences in school that convinced them that STEM subjects were inherently boring, cryptic, or beyond their grasp.

The report correctly points to the importance of STEM for our nation, and suggests compelling steps to improve what we do.

Comments No Comments »

The "World of Goo"Using gooey balls, in the “World of Goo,” to make towers and bridges is an engaging way to build conceptual ideas in physics, engineering, and chemistry. The game made by a team of two guys (Kyle Gabler and Ron Carmel) at “2D Boy” won the Innovation Award and Technical Excellence Award at the Independent Games Festival. Goo is available for PCs, Macs, and the Wii. IGN named Goo the best Wii game of the year.  In my house, the free trial download version of Goo won the “Win Over the Skeptical 11 Year-Old Award” for totally engaging my son—who proclaimed, “This is addicting!” My eight-year old son called it “very fun.”

That shows the power of Goo. A game that requires no instructions, but you proceed from level-to-level building things to transport the living goo balls. There is something satisfying about building the goo structures, and something powerful about completing the puzzle at each level. Okay, the goo ball creatures and game remind me a bit of the Zoombinis, and the puzzle contexts are not the greatest, but building the structures to solve the puzzle is intriguing and satisfying. And who wants to waste time learning elaborate storylines when there are goo structures to build?

In my trial of the free on-line sample, I built towers and then bridges. Then my 11-year old son took over, starting anew, and quickly blazed past me to get to build balloon structures to help fight gravity. Neither of us met the minimal goo ball rescue at the “Impale Sticky” level, but fortunately we were able to skip this level when we were left a few balls short.

Building a goo structure is difficult to describe but easy to do. You pull one of the goo balls and separate it from the structure. Two or three white “lines of force” (my term not theirs) appear and when you stop pulling it, the white lines become goo links joining the ball to the previous structure. Of course there is a lot of jiggling and the pull of gravity is evident. If you pull a ball too far away from the others, the lines of force disappear and you realize you need to put it closer.

Science Education and Goo

Linking goo balls forms triangular tresses, which are important units of engineering design. Through trial-and-error learning, we experience that triangle goo formations are easy to build and stable. It is a nice contrast, because it seems in the world of play (from Lincoln Logs™ to Legos™), rectangular formations dominate. The tresses are then used to build towers, bridges, and dangling structures. There is a nice science (and international touch) in the use of metric measurements such a “you have 4.4 meters to go.”

The physics of Goo feels pretty real, and this can be a bridge to many physics concepts. As you build structures, the notions of a good foundation and center of gravity come into play. Build it one way too far, and it falls down; keep the center of gravity above the base, and the tower rises. There is also a sense of harmonics/resonance/vibration in that if your structure starts to bend and bob, you have to be careful that your additions don’t cause more of this in an undesired direction.

At some higher levels of Goo, buoyancy comes into play, along with levers and moments, as balloons lift up lever arms. When this is applied to building a bridge, the balloon placement is critical because too much lift or too little gets the balloons popped. Placing the balloon closer or further from the pivot point can decrease or increase the lift.

For chemistry, the most obvious notion is the idea of adhesion and cohesion. Goo balls being attracted to other goo balls is cohesion. When they stick to something else, like the level where you have to climb up out of a canyon and make them stick to the walls, you have adhesion.

Goo problemsHow do you Goo?

If you are teaching an engineering class, I think you have good justification to buy a class set of the “World of Goo.” I also think this would make a great addition to the computers of an elementary school computer lab. I can imagine Mr. Cosgrove (my fifth grade teacher) saying: “After you finish your graphs, if you have time you can Goo.” But for stepping softly into the “World of Goo,” give your students an extra-credit assignment to download the free version (link) at home and complete a certain number of levels. They can use screenshots to prove (and display) their work.

Edu-Goo

Winning awards is great and selling lots of this game must be pretty exciting to the creators. But I think the next endeavor should be an Edu-Goo product line. The possibilities are endless so I will just name three: (a) Online competitions between classes, schools, or the world to see who can build the Goo bridge to support the most weight, (b) three-dimensional Goo structures so students can explore using triangular versus rectangular tresses, (c) DNA Goo, where students can construct DNA double helix molecules. Less exciting but useful are worksheets that can guide exploration and discovery. Edu-Goo could have a teacher contribution page so teachers can contribute ideas about educational uses of Goo. 

Comments 5 Comments »