About Michael Chellman

Michael is an award-winning teacher at Bullis School in Potomac, Maryland. He has 30 years of experience with both middle and high school students. He founded ClassWise in 1996.
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Michael has written 116 articles so far, you can find them below.

“Professional Development”: Be Wary

by Jay Mathews, The Washington Post, 9/14/15 Teacher development is built mostly on good intentions and false assumptions. I used to speak at professional-development sessions for teachers, but I eventually realized I was wasting their time. Like most professional-development presentations, my speeches were not integrated with a research-tested approach to improve teaching. That meant whatever I […]
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Teachers Will Not Be Replaced by Technology…

By John Chubb, Independent School, Winter 2015 …but technology will change the traditional roles of the teacher. For all of the growth in online course-taking and full-time online schooling, the most action in education technology is in blended learning. Experience with online education is beginning to indicate that the most successful learning experiences generally involve a […]
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13 Tips: Managing Second Chances

by Rick Wormeli, Educational Leadership, November 2011 Practical ways for students to redo assignments and retake assessments. Ask students who redo assignments to submit the original attempt with the new one and to write a brief letter comparing the two. What is different? What did they learn [from the second attempt]? Give alternative versions of […]
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Let’s Drop the Education Buzzwords

By Levi Folly, Education Week, 5/6/15 It’s easy to become ensnared in language that sounds important but says little. Why don’t we just say what we mean? Several years ago, [my] department head opened a meeting by asking us to share what was “happening in our firehouse.” My immediate reaction was to laugh…. For some […]
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Teachers Still Matter Most in Digital Age

By Susan Patrick, Amplify Learning website  Embracing digital learning means appreciating teachers’ permanent, critical role in the classroom. Technology in the classroom can be a powerful catalyst. But…one thing remains the same: the importance of the teacher in motivating students, customizing instruction,…and managing classrooms that blend digital with live instruction. Teachers–not tech–will always remain the […]
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This Is What It’s Like to Be a Writer

By Rachel Toor, The Chronicle of Higher Education, 2/2/15 Get used to the feeling of stuckness. Do the work even when it feels stupid and meaningless. Just do it. Asked if he thought he had evolved as a writer, Patrick Modiano, the most recent Nobel laureate in literature said, “No, not really. The feeling of […]
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Research: Teaching Middle School Girls More Effectively

By Shannon Andrus, Peter Kuriloff, Charlotte Jacobs; Independent School, Spring 2015 Girls are highly relational, not only with their teachers but with classmates. Through an analysis of more than 1,800 surveys completed by students in grades 6-12 and their teachers in 12 independent all-girls schools located across the United States, our findings provide guidelines for […]
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To Help a Shy Child, Listen

By Perri Klass, M.D., The New York Times, 9/16/13 Shyness is part of the great and glorious range of the human normal. Toward the end of the summer, I was seeing a middle-school girl for a physical. The notes from a clinic visit said she was a good student but didn’t talk enough in class. So […]
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Defying Conventional Views of Homework

By Alfie Kohn, Independent School, Winter 2007 [Michael’s Note: I admire those in education who have the courage to go against the grain, regardless of whether I concur. Alfie Kohn is such a thinker. This is one of his classics. For more, see: The Homework Myth: Why Our Kids Get Too Much of a Bad […]
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Narrow STEM Focus? Broad-Based Learning is Better

By Fareed Zakaria, The Washington Post, 3/26/15 Steve Jobs: “Technology married with liberal arts makes our hearts sing.” Every month, it seems, we hear about our children’s bad test scores in math and science — and about new initiatives from companies, universities, or foundations to expand STEM courses (science, technology, engineering, math) and deemphasize the […]
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