Sunday, July 31, 2016

DO try this at home!

Homemade catapult


The other day I received a newsletter from Home ScienceTools, a supplier of science materials for teachers, parents, and anyone who wants to do science at home.   This company was started in 1994 in the garage of a chemical engineer and his wife, when they couldn’t find materials for their own children.  Their letter got me thinking about learning science and the value of doing science at home with your children.

Science begins with questions and kids are natural questioners.  We all know that kids have millions of questions and feeding that curiosity helps them build a lifelong habit.  The questions that they ask about are the important ones to start with.  And the ones that come from their observations and interactions with the world provide a natural entryway into hands-on science.  Encouraging these questions and having the tools nearby to explore their ideas, empowers them and removes it from the realm of a homework assignment.

You learn science by doing science, by actively investigating the world around you. Reading about science is wonderful and rewarding.  For really learning how to do science, however, nothing beats looking at a bug under a microscope, digging up some compost and watching the critter, or mixing up cornstarch and water and playing with it.  It is a well-established principle that active involvements with real materials leads to more and deeper learning that simply watching a demo, live or on YouTube, or just reading about it. See How People Learn.  Nothing is wrong with reading science or watching science shows; they are just not as effective as doing hands-on science. Both definitely have a role, especially when they encourage kids to try things out for themselves.

Learning science actively naturally leads to developing skill in the inquiry process used by scientists. When children learn to form their own questions and then to try things out, to experiment in order to gather evidence, they are doing science.  They are doing science the way scientists do science.  It is a short step to recording data, interpreting that data, and sharing their discoveries with others. 

Science is not about amassing facts; science is a process of discovery that generates new knowledge.  For a child trying to make her baking soda and vinegar bottle rocket go higher, she is discovering knowledge new to her that expands her world.  If she is encouraged and supported, then maybe one day, she may be at Stanford experimenting with a new idea in rocket propulsion.  She is now discovering knowledge that is new to the entire world and that expand the possibilities for all of us.

Saturday, July 23, 2016

Building a Star

Taylor's first TED talk
 Taylor Wilson built a fusion reactor when he was fourteen years old. As amazing as it sounds, this achievement was the logical conclusion of years of work on his part.  His interests in nuclear physics grew out of his earlier interests.  First, he wanted to be an astronaut and learned everything he could about the space program.  Then, he began to focus on rockets, building and launching model rockets at an empty fairground near his home in Texarkana, Arkansas.  About then his grandmother bought him the biography of David Hahn, a teenager who tried to build a nuclear reactor at his home in Michigan, only to end up contaminating his home and neighborhood.  After devouring this book, The Radioactive Boy Scout, Taylor told his parents, according to Tom Clynes, Taylor’s biographer, “Know what?  The things that kids was trying to do, I’m pretty sure I could actually do them.”  And he was right!  His first TED talk is above.

Clynes bio of Taylor
Clynes, excellent biography, The Boy Who Played with Fusion, recounts the journey from his grandmother’s garage in Texarkana to the basement of the physics building at the University of Nevada, Reno, where Taylor’s dream finally came to fruition.  The story of this journey is a fascinating tale of hard work, acquiring important mentors and allies when most needed, strokes of great fortune, setbacks, hugely supportive parents, and probably most of all, the power of a clear compelling vision, unflagging optimism, personal charisma, and supreme confidence. 

A big leap forward comes when Taylor’s parents, Kenneth and Tiffany, decide to move their family to Reno, Nevada so that both their sons can attend the Davidson Academy, a school for the profoundly gifted, sited on the grounds of the University of Nevada at Reno.  Taylor’s brother, Joey, is highly gifted mathematically and both boys had more than topped out in the Texarkana schools and were beginning to languish.  In Reno, Taylor took the initiative to introduce himself to Ron Phaneuf, a top plasma physicist at UNR.  Phaneuf, amazed by Taylor, decided to help him and together with the chief engineer in the physics department, Bill Brinsmead, they aided Taylor in his quest to build a fusion reactor.  Taylor’s reactor worked and worked spectacularly.  When Brinsmead asked Taylor if he ever imagined, when still back in his grandmother’s garage, that he’ d be here in the lab on this day making his reactor work.  Tellingly, Taylor answered, “To be honest, Bill, I did.  I just didn’t think it would take me this long,” said the fourteen-year-old Taylor.

Taylor's fusor

Saturday, July 16, 2016

Motivation in the 21st Century



Daniel Pink's book, Drive: The Surprising Truth About What Motivates Us, presents the findings of social science and explores the large gap between theory and practice in most of our organizational and daily life, at work, at school, and in the community. Most of the motivation we experience in these settings is external, carrot-and-stick motivation. Do this and get a nice bonus. Don't do that or you will be fired, failed, or fined.

But that type of external motivation does not work well for the most important parts of life anymore, as not only a large body of empirical evidence shows, but also our daily experience. Designing highly creative new products, learning complex new skills, or building meaningful relationships with loved ones, clients, or your community clearly are incompatible with carrot-and-stick behavior. External motivators actually reduce intrinsic motivation, lower performance, crush creativity, and encourage short-term thinking and unethical behavior (think Enron and AIG).

Pink moves from showing the limited cases where external motivation works well, such as highly routine, boring, rote chores, such as an assembly line to demonstrating how 21st century work, learning, and life now depends more on creative and passionate engagement. He cites Autonomy, Mastery, and Purpose as the key elements of intrinsic motivation, along with suggestions about how to re-tool our motivational systems.

Autonomy means that people want control over their own schedule.  They want the freedom to work how they want and when they want.  Mastery refers to people’s desire to immerse themselves in their craft and to get really, really good at it.  They want to develop expertise.  Purpose refers to some goal that is bigger than just a production schedule, meeting a quota, or hitting a deadline.  For many people, purpose refers to something that is larger than themselves that gives meaning to their lives, whether it is family, a community, or a cause.
Drive reads quickly, provokes thought, and provides some guidelines for improvement.  For teachers, it is helpful to remember that most of the traditional ideas of motivation always were limited in usefulness, and many are now worthless.

Saturday, July 2, 2016

Train Teachers Like Doctors?



In an Op-Ed piece in yesterday’s NY Times, three administrators of the Banks Street School proposed that teachers be trained like doctors.  The key idea is that a teacher residency program would improve teacher training, reduce teacher turnover, and increase teacher effectiveness.  In the type of teacher residency they propose, a new teacher would be paid to work for a year, along with and under the supervision of an experienced master teacher while studying child development and teaching methods. This differs from traditional student teaching, which typically runs from 10 to 20 weeks, beginning mostly with observation in a classroom and progressing to teaching full-time with the lead teacher observing, though time in the classroom can vary widely among programs and states, as can what counts as “full-time teaching.” 

They assert that such a residency program would improve our schools and reduce the high cost of excessive turnover.  They estimate that it costs the U.S. $2.2 billion each year to replace teachers who leave their jobs. Of course, some of this turnover is natural, expected, and characteristic of any job; new teachers, however, are estimated to leave teaching at a much higher rate than normal for a typical job, as much as 50% turnover is a widely cited figure.  This article, along with others, such as Valerie Strauss’s Washington Post piece, The Real Reasons Behind the U.S. Teacher Shortage, decries a shortage of teacher throughout the U.S.

The authors argue that we should spend more money on teacher training and development and compare the costs of a residency program to the public money spent on training and developing new physicians.  The U.S. now spends $11.5 billion annually on medical education, which comes out to about $500,000 for each new doctor.  Good doctors are essential, but so are good teachers.  By their estimate, good residency programs would cost about $65,000 per year, including tuition and stipends.  They point to some areas in the public education budget to begin finding these dollars, such as substitute teachers and the $6000 to $18,000 spent per teacher on professional development, much of which is deemed by teachers as “ineffective.”  Sounds like a good idea.




Starting Early



   To see a World in a Grain of Sand

And a Heaven in a Wild Flower 

Hold Infinity in the palm of your hand 

And Eternity in an hour
--William Blake, Auguries of Innocence


We start Science in the early childhood years to channel and build on children’s natural predilection for discovery and their indescribable joy in finding out about how the world works. Today an earthworm; tomorrow, perhaps, a cosmic wormhole.


Young children are natural explorers and natural investigators.  When children are introduced to science early on as an extension of their wondering and question, it becomes fun and natural.  When science is introduced as experiences and experiments, it stays fun and natural.  Kim Saxe, one of the founders of the Design Thinking movement, has recently tweeted about the experience of awe and the role awe in motivating and renewing our students and ourselves.  This is the way science should be, especially in the early years.  The impulse to want to know what something is, how it works, and why it works is at the heart of science.  Of course, as you learn more and dig deeper into how the natural world works, it takes more skill and more effort to find increasingly more subtle answers to our more complex questions.  And, we need more complex tools and techniques to find these answers.  And it takes more work, more effort, and more grit to learn to use these tools that are necessary ferret out the answers we seek.  But, if we push the tools and techniques ahead of the awe, we kill the natural curiosity of our students.


Jason Silva gets at this same idea in his amazing video Awe.
See this YouTube video!