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Robert Kaplinsky
Math educator. Love helping teachers. co-founder. author. creator. Pres. Lessons & ideas:
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Robert Kaplinsky 43m
Here are three variations of problems for Geometry students where they have to find the biggest circle (from and I).
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Robert Kaplinsky 1h
Very cool! Good luck.
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Marilyn Burns Jul 9
Key words can be sooo misleading. Watch the short video for an example of why:
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Matt Vaudrey 5h
Looking for a way to build confidence and vulnerability at your school site? Check out 's challenge!
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Robert Kaplinsky 4h
How do you find where 1/3 cup of butter is if you only see a label for 1/4 cup? Check out this challenging lesson on fractions on number line here:
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Robert Kaplinsky 7h
Replying to @mgolding
I think the timing and purpose matter. It's a lot easier to turn and talk and do it for 2 minutes than it is to assign people to breakout rooms for 2 minutes. The amount of increased transition time with online formats is staggering.
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Robert Kaplinsky 23h
Sign up here for my weekly emails. They're free and arrive in you inbox every Tuesday (when school is in session).
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Robert Kaplinsky Jul 9
What can the process of moving out of a home teach us about revising our curriculum maps to something more doable?
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Robert Kaplinsky Jul 9
Very cool!
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John Kerrigan Jul 9
Made an for my online linear algebra students. Instead of mindless number crunching, they were tasked to find the largest determinant of a 3x3 matrix by looking at cofactor expansion properties and more. So far our best answer is 412. Can you find a larger one?
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tracy pope Jul 9
Awesome book! Excited to use these problems more effectively to unlock my students’ thinking!
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Robert Kaplinsky Jul 9
Sure. I'm biased but works great here.
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Robert Kaplinsky Jul 9
Hahaha. That is so weird because I've always been so embarrassed and self-conscious about my voice. It's amazing what things we're each concerned with about ourselves that no one else even thinks. Thank you so much. Glad you liked the interview too!
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Robert Kaplinsky retweeted
Dr. John Spencer Jul 7
It’s not selfish for educators to bring up concerns about exposure to COVID-19. It’s not even self-care. It’s basic self-preservation. And that’s often motivated by the human desire to be alive for our loved ones. Saying, “I want to live” shouldn’t be a controversial stance.
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Robert Kaplinsky Jul 8
Wow that started fast!
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Robert Kaplinsky Jul 8
Replying to @KFR_MathEd
Fantastic. Reach out if I can help. Would love to hear about what you learn.
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Robert Kaplinsky Jul 8
How will your students answer this challenging adding fractions problem from Owen Kaplinsky? See the answers and hints on at
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Robert Kaplinsky Jul 8
Want a real world context for writing numbers in expanded form? Use check writing to talk about this process.
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Robert Kaplinsky Jul 8
Replying to @KFR_MathEd
I'm not sure I have heard about any formal research. What were you hoping to learn?
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Robert Kaplinsky Jul 8
No. Way. What a bummer!
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