I. Introduction
“You can’t achieve what you can’t conceive.”
-Author unknown
The United States of America may lose its supremacy as a superpower if our children of today can’t grasp the technologies of tomorrow. The trend has already been set. High-level engineering jobs are currently being outsourced to other nations, not only because of cheaper costs, but inadequacies of filling them in the states. Let’s face it; there are not too many Americans who strive to have a doctrine in Electrical Engineering to do research and development. To other countries like Korea, many students see Math as the “universal language” and foresee a technically based doctorate level diploma as a necessity for excelling in their country. To many, this is the only road out of poverty. American children, stereotypically, do not have this fear to motivate them. Many children in this “superior” country just view mathematics as something needed to pass a proficiency test. Its value is discarded. The implementations are unseen. The desire of children to follow this type of career path is decreasing. Obviously, these future implications are disturbing and may some day be detrimental to the foundation of our country. However, I believe nurturing children’s enthusiasm in needing to use math may be the answer. Not surprisingly as stated in Robots for Kids, “Robots rank right up there with dinosaurs when it comes to grabbing the attention of elementary school students…” [1 p. 232]. Hence, I predict an interest, active participation, and proper guidance in robotics will increase nationally recorded math scores.
II. Staggering Math Scores
The facts don’t lie. According to the US Department of Education in 1999 [2], the United States ranked 12th among 4th graders, a staggering 28th among 8th graders, and just 19th among seniors in nationally recorded math scores. How can poverty stricken and problematic country like Israel be three rankings ahead of us with 8th graders? Clearly, money isn’t the answer. Nor do I believe Israelis have fewer fears about violence than our inner city children do to distract them. Although I’m a bit perplexed by the answer, I believe solution lies in a child’s own aspirations and inner desires. Many of our youth dream to be professional athletes or pop singers. That’s what they see. That’s what they know. That’s what they love. These young easily influenced children view these avenues not only as fun, but also as a means for financial freedom. With mathematics being the “universal language,” children in other countries may see this as the only way to break through levels of poverty and thrive in life. Let’s face it; math can be a difficult subject to grasp. Unless one either has the first name ‘Albert’ or discovers motivational reasons to put forth extra effort, the scores will suffer. The Third International Mathematics and Science Study (TIMSS) has found that “students who agreed that they like math and that math was useful for solving problems, scored higher than students who disagreed” [3]. To no surprise, many educators have already taken this as a given. The question that now arises is how to motivate the children? Or better yet, how does one follow a handed-down curriculum while taking advantage of today’s enticing technologies? As stated by Druin and Hendler, “I believe the desire for learning has to do with an animating idea or an engaging project. New technologies enable students of all ages to pursue richer, far more complex learning experiences. With robots, students can truly be scientists, engineers, designers, and builders” [1 pp. 161-62].
Grade 4 Grade 8 Grade 12
Rank Nation Score Nation Score Nation Score
1 Singapore 625 Singapore 643 Netherlands 560
2 Korea 611 Korea 607 Sweden 552
3 Japan 597 Japan 605 Denmark 547
4 Hong Kong 587 Hong Kong 588 Switzerland 540
5 Netherlands 577 Belgium 565 Iceland 534
6 Czech Republic 567 Czech Republic 564 Norway 528
7 Austria 559 Slovak Republic 547 France 523
8 Slovenia 552 Switzerland 545 New Zealand 522
9 Ireland 550 Netherlands 541 Australia 522
10 Hungary 548 Slovenia 541 Canada 519
11 Australia 546 Bulgaria 540 Slovenia 518
12 United States 545 Austria 539 Germany 495
13 Canada 532 France 538 Hungary 483
14 Israel 531 Hungary 537 Italy 476
15 Latvia 525 Russian Fed. 535 Russian Fed. 471
16 Scotland 520 Australia 530 Lithuania 469
17 England 513 Ireland 527 Czech Republic 466
18 Cyprus 502 Canada 527 United States 461
19 Norway 502 Belgium 526 Cyprus 446
20 New Zealand 499 Sweden 519 South Africa 356
21 Greece 492 Thailand 522
22 Thailand 490 Israel 522
23 Portugal 475 Germany 509
24 Iceland 474 New Zealand 508
25 Iran 429 …(28th)United States 500
Figure 1: Third International Mathematics and Science Study (TIMMS) of 1999 Math scores [2].
Figure 2: Average mathematics scores by students that state “I like math” [3].
Figure 3: Average mathematics scores by students that state “Mathematics is useful for solving everyday problems” [3].
III. Robots in the Media
Television may be lending a helping hand in the educational pursuit of sparking kid’s interest in robots. Maybe the eyes have been blessed to see Honda’s commercial of a 4 foot robot walking down the driveway to pickup a Sunday paper. This completely autonomous robot, which appears to be wearing a space suit, is currently on tour around the world. This “Advanced Step in Innovative MObility,” or better known as ASIMO, is the result of a robotics program that began in 1986. Being the most advanced humanoid robot in existence, this intriguing creation walks on two legs, has 26 degrees of freedom, can walk up steps, and is currently on a North American Educational Tour. Recently, this technological marvel visited the Bronx schools in an attempt to “encourage the interest in the study of robotics and science” [4]. Even a section on the website is dedicated to teacher’s resources for children. With ASIMO, Honda is truly giving our youth “The power of dreams” [4].
Sony is also doing its part to “Change the way you see world.” AIBO has become a pet of the future for many while the SDR-4X II is all the rave. AIBO is an autonomous dog that can learn, do tricks, and express feelings. This approximately $2000 piece of entertainment is completely programmable for upgrading and educational purposes. Be prepared for the pet to express 6 different types of feelings, act according to its environment and attention it’s receiving, seek out its toys, and without human help it will wake up and fall asleep on a charging station. Not only does the dog mature overtime, but also it won’t dirty the carpets as a puppy! The SDR-4X II, on the other hand, literally has become the rave among youngsters. This humanoid can be caught “raving” (a techno dance technique), throwing balls, doing tai chi, and even jogging. Even better, the video clips available on the Internet and television demonstrate five of them doing it in unison. And it gets better! This robot also has face recognition, a 20,000-word vocabulary for speech recognition and synthesis, color recognition, and still finds time to map out a room for optimum placement to show off. Now only if this thing didn’t need to be charged. Oh, did I mention work is already being done on that [4, 5]?
The stated robots do a wonderful job of creating attention for themselves and portraying to youngsters “cool” jobs to have when they grown up. However, I believe the television show Robot Wars is a driving force for inspiring them to begin building. I can vouch as living proof of that statement. Turn on TechTV and you will have the pleasure of watching robots battle to the death in an arena that has gusts of fire, pits to oblivion, and flippers that launch unfortunate robots through the air to their doom. Combine this with hundreds if not over a thousand screaming children in the stands and this show becomes a quick favorite. The program’s website even provides a daily quench for the thirst of building. Direct links are provided on how to start creating robots from home. GI Joes begin to look like baby toys in comparison to a 500 pound robot that shoots fire, spins blades, has crushing pinchers, and is moving strictly to survive and destroy someone else’s creation. Inside this 20- by 54-foot arena is the ultimate in robot combat and competition. Children love it [7, 8]!
IV. Creative Avenues
A common place many turn to when compelled to build a bot is David Cook’s book, robot Building for Beginners. Following these instructions, not only will a line following robot be built, but math is unavoidably used and pursued. In order to understand speed, one must first understand Revolutions Per Minute, trade offs between speed and torque, battery levels, friction, robot mass and ways to manipulate these values with different voltages, gear ratios, and tire sizes. Trial and error is always an option and, might I add, a popular one amongst beginners. Remember, robotics is something that making a mistake is ‘OK’ and a tremendous amount of the learning results from these mistakes. However, this is where a teacher steps in and provides a ‘bag of tricks’ to the knowledge hungry children. I believe Miller and Stein say it best when they detail reactions from a second grade class:
“…several students will stare with awe and admiration at the one or two students who know their multiplication tables and can predict how many times a motor needs to turn to make the wheel on their robot turn once… All of a sudden radii, circles, circumferences, and so on have utility—as one of our students suddenly loudly exclaimed, “So that’s what pi is for!”” [1 pp. 231-32].
Wow, all that to just determine speed. Lets not forget that the person reading the book is going to learn about materials science (i.e. textile strength), basic electronics (voltage = current * resistance), mechanics (loads and stress), diodes, resisters, capacitors, LEDs, and all the tools and procedures to use them effectively. At first glance, this may seem like a lot to learn for a child. Remember this: it’s not the teacher’s lessons being forced on the kids, it’s their own! What child becomes enthused with a question stating, “If Jack is half as old as Jill, and Jill is one third as old as Jan? Then how old is Jack on Jan’s 60 birthday?” Building robots is a teacher’s dream–true problem solving with the added benefit of enthusiasm [9].
With DC robots, the sky is the limit on how technical the project will become. However, sometimes quicker and less complex solutions may be more appropriate. BEAM technology uses solar energy to power very simplistic, yet captivating, robots. This acronym for Biology Electronics Aesthetics Mechanics represents an area of robotics using no computational power, inspirations from Mother Nature, a focus on designs that appeal to the eye, while making it all work with the small amount of power given from a solar panel. There are rarely circuit boards used, no programming is involved, and just a few inexpensive are parts needed. My first BEAM robot involved a paper clip, a pager motor, a solar panel, a capacitor, and a little solder. In about 20 minutes, the 5 parts came to life! The beauty of these robots is the simplicity to build, the parts are cheap to buy or easily found in techno junk around the house, and only a soldering iron is necessary to build them. While these robots generally take the form of a bug or some other small creature, they have a large appeal to children. Projects are very quick. This fact alone adheres to those with a short attention span who want immediate feedback on their progresses. In addition, many of the basic principals of science and biology are incorporated in the design and can be discussed with respect to solar energy. Visits to the zoo will become more educational as children will seek out animals to mimic their moments and appearance. “Construction material and project ideas that appeal to a broad range of interests allow multiple entry points into science, mathematics, engineering, design, art and music for all types of learners. These materials not only make new knowledge domains accessible, but also provide new ways for children to relate to domains of knowledge to which they have already been exposed” [1 p. 22]. In addition, an obvious challenge of this solar technology is to minimize the current used and find ways of storing (capacitors) what little energy that is available. Hence, young robotists will learn the importance of reading and comprehending part data sheets in order to choose the appropriate parts wisely. Naturally, some of the most basic problem solving techniques are utilized at its finest [10].