Tag: Science

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Why Don’t We Teach Sequencing Skills? It’s an Essential Higher-Order Thinking Strategy

We spend a lot of time in school getting students to learn sequential information – timelines, progressions, life cycle of a moth, steps for how to. Typically the teacher teaches the student the sequence and the student correctly identifies the sequence for teacher on the test. Thus we treat a sequence as a ordered collection of facts to be learned, not as a thinking process for students to use.  This memorization reduces the student's "mastery" of the chronology to lower order thinking. I was guilty of this when I first started teaching history "Can someone give me two causes and three results of WWII?" 

When students are asked to observe a process and develop a sequence they have an opportunity to use a full spectrum of higher-order thinking skills – they must recognize patterns (analyze), determine causality (evaluate) and then decide how they would communicate what they've learned to others (create). Sequencing can be taught across the curriculum at a variety of grade levels – we simply have to ask the students to observe and do the thinking.

There is some interesting research that demonstrates that students have trouble when asked to develop sequences. It comes from the Program for International Student Assessment.  PISA is an assessment (begun in 2000) that focuses on 15-year-olds' capabilities in reading literacy, mathematics literacy, and science literacy. PISA studied students in 41 countries and assessed how well prepared students are for life beyond the classroom by focusing on the application of knowledge and skills to problems with a real-life context. For more examples of PISA questions and data see my blog post.

Sample sequencing problem from PISA 2003.

The Hobson High School library has a simple system for lending books: for staff members the loan period is 28 days, and for students the loan period is 7 days. The following is a decision tree diagram showing this simple system:

Hobson

The Greenwood High School has a similar, but more complex library lending system:
All publications classified as “Reserved” have a loan period of 2 days.
For books (not including magazines) that are not on the reserved list, the loan period is 28 days for staff, and 14 days for students. For magazines that are not on the reserved list, the loan period is 7 days for everyone.
Persons with any overdue items are not allowed to borrow anything. 

Task
Develop a decision tree diagram for the Greenwood High School Library system so that an automated checking system can be designed to deal with book and magazine loans at the library.  Your checking system should be as efficient as possible (i.e. it should have the least number of checking steps). Note that each checking step should have only two outcomes and the outcomes should be labeled appropriately (e.g. “Yes” and “No”).

The student results were rated on a rubric scale.  Only 13.5% of US students were able correctly answered the question. Their international 15-year-old peers didn't fare much better – 14.3% of them answered correctly. 

The correct response looked something like this.

Greenwood
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President Obama’s Education Policy Speech March 9, 2009

President Obama used a talk to the Hispanic Chamber of Commerce as a forum for a major address on administration education policy. Among his "four pillars of reform," he called for an expansion of charter school as "laboratories of innovation." For text transcript of Obama's speech click here. 

I decided to use Many Eyes to do a textual analysis of these two key words from his talk – "charter" and "innovation." I used the word tree visualization. 

Obama's use of the word "Charter"

Obama's use of the word "Innovation"

Many Eyes in the classroom
Many Eyes is a great new website that gives teachers and students a chance to easily use sophisticated graphic tools to analyze data and create interactive displays. Those who register at the site can use 16 visualization types to present data. Why not have your students use Many Eyes to analyze a selection of non-fiction text to uncover the main ideas and key vocabulary of the piece? Or they could compare text from different sources. Want your students to more fully understand your course content? Let them use Many Eyes to visualize and discover patterns as a catalyst for discussion and collective insights about information, text, and data. As they say at Many Eyes, "Finding the right way view your data is as much an art as a science. The visualizations provided on Many Eyes range from the ordinary to the experimental."

When to use a Word Tree
A word tree is a visual search tool for unstructured text, such as a book, article, speech or poem. It lets you pick a word or phrase and shows you all the different contexts in which it appears. The contexts are arranged in a tree-like branching structure to reveal recurrent themes and phrases.
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Physics Department Innovates with Student-Centered Approach

There's an interesting piece in the New York Times "At M.I.T., Large Lectures Are Going the Way of the Blackboard" (1/13/09) that details an effort by the MIT physics department to move to a more student-centered, interactive approach to instruction. Physics is not simply a body of knowledge. It's a way of thinking, asking questions and discovering answers.

At M.I.T., two introductory courses are still required — classical mechanics and electromagnetism — but today they meet in high-tech classrooms, where about 80 students sit at 13 round tables equipped with networked computers.

Instead of blackboards, the walls are covered with white boards and huge display screens. Circulating with a team of teaching assistants, the professor makes brief presentations of general principles and engages the students as they work out related concepts in small groups.

Teachers and students conduct experiments together. The room buzzes. Conferring with tablemates, calling out questions and jumping up to write formulas on the white boards are all encouraged.

“There was a long tradition that what it meant to teach was to give a really well-prepared lecture,” said Peter Dourmashkin, a senior lecturer in physics at M.I.T. and a strong proponent of the new method. “It was the students’ job to figure it out.”

The problem, say Dr. Dourmashkin and others in the department, is that a lot of students had trouble doing that. The failure rate for those lecture courses, even those taught by the most mesmerizing teachers, was typically 10 percent to 12 percent. Now, it has dropped to 4 percent.

… The traditional 50-minute lecture was geared more toward physics majors, said Eric Mazur, a physicist at Harvard who is a pioneer of the new approach, and whose work has influenced the change at M.I.T.

“The people who wanted to understand,” Professor Mazur said, “had the discipline, the urge, to sit down afterwards and say, ‘Let me figure this out.’ ” But for the majority, he said, a different approach is needed.

“Just as you can’t become a marathon runner by watching marathons on TV,” Professor Mazur said, “likewise for science, you have to go through the thought processes of doing science and not just watch your instructor do it.”

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Transforming Information Flow in School Libraries

Schools have long functioned as information gatekeepers. The flow of information in most classrooms is simply teacher > student > teacher. Many whole group "discussions" are dominated by teachers playing "guess what I'm thinking" and feeling the need to validate every student response. Picture the economics teacher in Ferris Bueller's Day Off . "Anyone.. Anyone..?" Much of the rest of schools – textbooks, libraries, labs – support the idea that the adults have the information and will ration it out to students in a measured flow. 

We lament that many students aren't motivated in class. I suspect that's because our students are becoming accustomed to a more horizontal and open information flow. They have an ever growing expectation for more control and functionality over the information they access, save, repurpose and share.

How long do we think public schools will be able to monopolize the flow of academic information? Look around us and see that the traditional information gatekeeper  model is failing. Chicago Tribune? Layoffs at NPR? Christian Science Monitor going to web only? Shouldn't we be rethinking the information architecture in our schools?

In his recent article, "Flip This Library: School Libraries Need a Revolution" School Library Journal (11/1/2008),  David Loertscher,  calls for a  a revolution in thinking about the form and function of information in the school library. He envisions a 

"learning commons – both a physical and a virtual space that’s staffed not just by teacher-librarians but also by other school specialists … such as literacy coaches, teacher technologists, teacher-librarians, art teachers, music teachers, and P.E. teachers…"

The main objective of the open commons is to showcase the school’s best teaching and learning practices… a typical classroom assignment and library Web site are examples of one-way communication. Adults tell learners what to do, how to do it, and where to find information. But in the new learning commons, homework assignments and library Web sites offer two-way communication.  

… Having done that, note that you have created a revolution in thinking. Directive adults have been transformed into coaches; direct teaching has been transformed into collaborative inquiry. 

Sidebar from the article below. 

SLJNov08_FlipLib_SBbox
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Fostering Creativity

idea festival
idea festival

Creating is Bloom’s highest level of thinking. Creating is not limited to “the creative.” We all create when we make new combinations of existing elements. Someone put wheels on the bottom of a scaled-down surfboard and created the skateboard. And so it goes…

While teachers and students are constrained by mind-numbing test prep, the rest of society is working overtime to foster creative connections. In September the annual “IdeaFestival” was held in Louisville, KY. It brings together creative thinkers from different disciplines to connect ideas in science, the arts, design, business, film, technology and education. The festival motto – “If it can possibly go together, it comes together here.” Why not apply that perspective in our schools?

Here are some suggestions from the festival on how to come up with new ideas. Many can be easily adapted to help our students discover their creative potential in the classroom.

1. Think when you are not thinking, for example, on a run or walk.
2. Listen to classical music, go to a concert or a play or sit quietly in a park to daydream.
3. Read periodicals you would not typically read — a scientific magazine, for example, if you are more interested in business. Same with books outside your typical genre.
4. Attend a conference outside your field.
5. Surround yourself with creative thinkers.
6. Immerse yourself in a problem; ask questions, investigate possible outcomes.
7. Keep an idea journal.
8. Take a course to learn a new language or some other skill outside your expertise.
9. Be curious and experiment.
10. Articulate your idea, seek feedback, put structure on it, harvest it.