Ever feel like you don't get the attention or respect you deserve from the people who know you well? You're not alone and it can drive you bonkers. Here's my take on it including where it shows up in education and what you can do about it. robertkaplinsky.com/no-one-...

Did you know that Mike Flynn has a YouTube channel where he shares videos for math educators? Here are three of his most popular videos: www.youtube.com/watch?v=Uzj... www.youtube.com/watch?v=q_F... www.youtube.com/watch?v=MBC...

Tired of students getting correct answers, yet not really understanding what they're doing? Then you should check out the recording of my How To Help Students Become Problem Solvers, Not Math Robots webinar with K-5 & 6-12 versions. robertkaplinsky.com/norobot...

Algebra teachers, check out these three rational exponent problems from Bryan Anderson. See the hints and answers on Open Middle: www.openmiddle.com/rational... www.openmiddle.com/rational... www.openmiddle.com/rational...

Looking for a lesson to help students develop strategies for solving problems involving coins? Check out this lesson that provides many opportunities for strategic thinking. robertkaplinsky.com/work/en...

Have you ever heard an idea that you'd never considered, but right after you heard it, you immediately recognized it's brilliance? The word for that is "postdictable". Read all about it as well as postdictable ideas in education: robertkaplinsky.com/postdic...

Are your students working on radical equations? This Open Middle problem from Jonathan Newman will challenge their understandings! www.openmiddle.com/radical-...

What is this?! A center for ants?!! Use scale and proportions to find how many times bigger Zoolander's school should really be. I've included a clip from the movie and three potential methods for how students might approach this problem. robertkaplinsky.com/work/ho...

How deeply do your students understand parallel and perpendicular lines if they can't create sets of points to define the lines? Try out these two Open Middle problems from Nanette Johnson: www.openmiddle.com/perpendi... www.openmiddle.com/parallel...

Professional development wasn't working great before the pandemic. We need more differentiation, flexibility, affordability, and access time. So here's my take on what we need to do differently now and how we can do it. robertkaplinsky.com/four-wa...

Want to help students develop conceptual understanding of parabolas? This lesson uses the game Angry Birds as a context for understanding what information you need to graph a quadratic. robertkaplinsky.com/work/an...

If you run educator events where people get paid to speak (or you get paid to speak at events like this), this blog post's for you. Since Feb 2021, I've asked orgs that hire me to pay all keynote/featured speakers equally. Here are five reactions. robertkaplinsky.com/five-re...

Steve Wyborney has SOOOO many free resources for teachers to immediately use in their classroom. Primary Tile Questions are a great mix of numbers sense and geometric reasoning. Don't wait to use these with your students: stevewyborney.com/2017/01/p...

Do you present to other educators or aspire to? I created a webinar where I go through my entire presentation creation process from start to finish. For example, I use this three circle Venn diagram to help me choose a topic. Watch it here: https://info.robertkaplinsky.com/captivating/

Are your students learning about parallel lines and transversals? Try out these two Open Middle problems from Shelli Foust: www.openmiddle.com/parallel... www.openmiddle.com/parallel...

The NHTSA created infographics to tell people that some children are not in the right car seats. The problem is that they don't actually show the correct fraction that they should! Have students suggest fixes for the images in this lesson. robertkaplinsky.com/work/ca...

If your school or district's initiatives are all over the place with little coherence, then this blog post will resonate with you. robertkaplinsky.com/the-nee...

Want to challenge your Geometry students to find the area of triangles? Try out this Open Middle problem from Dan Wulf. www.openmiddle.com/area-of-...

Looking for a real world context for writing out numbers in expanded form? This problem uses check writing to help kids make sense of the process. Share it with an elementary teacher you know. robertkaplinsky.com/work/wr...

Here's a challenging Open Middle problem to help students develop conceptual understanding of quadratics in standard form: www.openmiddle.com/maximum-...

Here's my letter to the editor published in Education Week about why math educators should use social media professionally. robertkaplinsky.com/letter-...

This lesson uses a BuzzFeed video to help students better visualize calories. It's also a great context for combining like terms and solving one- and two-step equations: robertkaplinsky.com/work/wh...

I used to think that courageous and fearless were interchangeable. They're not and I unpack the meaningful difference in this really short blog post. robertkaplinsky.com/be-cour...

Math openers promote rigorous student thinking and discourse at the beginning of each class. Dan Finkel from Math for Love provides over a dozen free openers on his website: mathforlove.com/lessons/ope... And here's his online workshop on openers: grassrootsworkshops.com/wor...

If you teach others through online workshops, then you should check out my webinar recording on 6 counterintuitive lessons learned I wish I had understood earlier. For example, should workshops feel more like watching Netflix or traditional TV? robertkaplinsky.com/pdwebinar

Are you using Open Middle problems in your class? The amount of math students do with one simple problem is amazing. And they are so much more engaging There are so many available at openmiddle.com. I used one with my undergraduates last night. Thanks @robertkaplinsky.com for this amazing resource!

If your Geometry students are working on the midpoint formula, try out this Open Middle problem from Dane Ehlert with them. www.openmiddle.com/midpoint...

Did you know that Hyundai offers a 100,000 mile in countries that use miles and 100,000 km warranty in countries that use the metric system? Are they the same? If not, which is better for the consumer and which is better for Hyundai? robertkaplinsky.com/work/ca...

Teach high school math? Check out this blog post for a quick tip to identify which standards require mathematical modeling. robertkaplinsky.com/high-sc...

Are your students working on parallel and perpendicular lines? Try out these two Open Middle problems from Bryan Anderson: www.openmiddle.com/equation... www.openmiddle.com/equation...