Doug Doblar
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Thinking Tasks My STudents Love:
​"Math Games With Bad Drawings"

​April 4, 2026

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Building Thinking Classrooms in Mathematics fans, I've found a new-to-me source of thinking tasks that I'm excited to share with you.  It is a book called Math Games with Bad Drawings by Ben Orlin.
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The Evidence Against Classroom Technology Is Getting Hard To Ignore

​March 29, 2026

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​A couple of years ago, I wrote a post explaining why - despite having a PhD in Instructional Technology - I hardly ever take advantage of the laptops that my school provides for every student.  The case I made was purely anecdotal and qualitative: in my personal situation, classroom technology is rarely worth it anymore.  It used to be, but now it isn't.

Two years later, I've seen an explosion of op-eds and case studies making the same case, but this time from a quantitative perspective.
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    ABOUT ME

    I'm an award-winning teacher in the Atlanta area with experience teaching at every level from elementary school to college. 

    I made this website to share ideas, stories, and resources from my teaching practice.

    Building A Thinking Classroom IN Mathematics

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    "Leaning In" To The Science and Engineering PRactices

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    Classroom Practices

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    Classroom Stories

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    Ideas and Opinions

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    Pandemic-Related Issues

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    Math Instructional Videos

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    • Home
    • Math Videos
      • 4th Grade Math >
        • Numbers - Base 10
        • Operations and Algebraic Thinking
        • Numbers - Fractions
        • Geometry
        • Measurement and Data
      • 6th Grade Math >
        • Number System (6th)
        • Ratios and Proportional Thinking (6th)
        • Expressions and Equations (6th)
        • Geometry (6th)
        • Statistics and Probability (6th)
      • 7th Grade Math >
        • Ratios-Rates-Proportions-7th
        • Expressions and Equations (7th)
        • Number System (7th)
        • Geometry (7th)
        • Statistics and Probability (7th)
      • 8th Grade Math >
        • Number System (8th)
        • Expressions and Equations (8th)
        • Functions (8th)
        • Geometry (8th)
        • Statistics and Probability (8th)
    • Blog Topics
      • Thinking Classroom
      • Leaning Into Science and Engineering
      • Classroom Practices
      • Classroom Stories
      • Ideas and Opinions
      • Pandemic-Related Issues
    • About
    • Now