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Robert Kaplinsky Profile
Robert Kaplinsky

@robertkaplinsky

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Math educator. ❤️ teachers. @openmiddle co-founder. #OpenMiddleBook author. #ObserveMe creator. @GrassrootsWS President. Get my emails: https://t.co/9CQIavz7yD

Lakewood, CA
Joined August 2012
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@robertkaplinsky
Robert Kaplinsky
3 years
I don't often talk about living in homeless shelters or a group home because they're not my favorite memories to relive. However I decided to present about it because knowing stories helps educators better empathize. You can watch the presentation here:
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@robertkaplinsky
Robert Kaplinsky
6 hours
Test your 7th graders' understandings of converting fractions to repeating decimals with this @openmiddle problem from @danluevanos.
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@robertkaplinsky
Robert Kaplinsky
9 hours
Which @MichaelsStores coupon will save you more money today? 30% off entire purchase or 40% off one item? .
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@robertkaplinsky
Robert Kaplinsky
1 day
There are so many things about presenting that I wish I knew years ago. So, I compiled these tips into a list for you to read. If you ever present to others (even to students), it's something you'll want to check out.
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@robertkaplinsky
Robert Kaplinsky
2 days
Do you teach factoring quadratics? Try out this @openmiddle problem with your students. What do you think they'll say are the largest and smallest integers?
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@robertkaplinsky
Robert Kaplinsky
2 days
A man received a USD $103,000 speeding ticket in Finland because it was based on the offense severity and his income. Does that seem fair? How would you find a fair price for a speeding ticket? .
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@robertkaplinsky
Robert Kaplinsky
4 days
How are your third graders when it comes to operations with time? This @openmiddle problem challenges students to make the latest possible time.
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@robertkaplinsky
Robert Kaplinsky
5 days
I spent eight years as a math teacher specialist and I learned so much about the job during that time. If you're a teacher who supports other teachers at a school district (or know someone who does), this is something you'll both want to read.
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@robertkaplinsky
Robert Kaplinsky
5 days
Your 3rd and 4th grade students will love doing operations with time when it comes to figuring out how many movies they can see.
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@robertkaplinsky
Robert Kaplinsky
6 days
I'm a huge fan of the research around #growthmindset, but there is one part that I'd like to explore: do you really learn from mistakes that you're not aware of? .
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@robertkaplinsky
Robert Kaplinsky
6 days
I love @heather_kohn's teacher moves where she reflects on how she got kids engaged in a single graph for 45 min. #iteachmath
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@robertkaplinsky
Robert Kaplinsky
6 days
If you provide online professional development, you should check out my webinar called "Six Counterintuitive Lessons Learned About Online Workshops". For example, should they be more like Netflix or traditional TV? . Watch here:
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@robertkaplinsky
Robert Kaplinsky
7 days
This fifth grade problem on the volume of a rectangular prism from @JSchwartz10a will your students thinking more deeply. See the hints and answers on @openmiddle at:
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@robertkaplinsky
Robert Kaplinsky
7 days
You may have taken your coins to a @coinstar machine, but here's a lesson to help elementary students figure out how much money they should be getting.
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@robertkaplinsky
Robert Kaplinsky
8 days
Is it scary or dangerous for teachers to try new techniques in their classroom? What about using the same teaching methods for an entire career? Learn more about the differences between scary and dangerous.
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@robertkaplinsky
Robert Kaplinsky
9 days
Are you looking to see whether your sixth graders really understand one-step equations? Try out these two @openmiddle problems with them: .
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@robertkaplinsky
Robert Kaplinsky
9 days
How can students figure out if one quart of paint is enough to paint the handball wall? Use this lesson as an intro to area.
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@robertkaplinsky
Robert Kaplinsky
11 days
This single 5th grade @openmiddle problem on decimal multiplication can easily replace an entire worksheet. except that kids will love doing this and fight each other to get the closest answer.
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@robertkaplinsky
Robert Kaplinsky
12 days
Sometimes teachers use a common assessment and think that everyone is using it for the same reason. but is that always the case? .
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@robertkaplinsky
Robert Kaplinsky
12 days
In 2004, a police airplane gave someone a speeding for going 205 mph by seeing how long it took to go a quarter mile. Have students calculate the motorcycle's speed using the same method.
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@robertkaplinsky
Robert Kaplinsky
13 days
This might be my favorite and most used metaphor about how people often think they're talking about the same thing but later get frustrated because they didn't discuss the details. Learn more about it and what you can do to avoid it.
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