Math educator. Love helping teachers.
Open Middle co-founder. #OpenMiddleBook author. #ObserveMe creator. Grassroots Workshops President. Get lessons & ideas: http://bit.ly/rkupdates
Robert Kaplinsky
NFL cornerback Patrick Peterson received a $15,361,000 signing bonus but didn't cash the check for almost a month. When asked why, he said, “I just haven’t gotten around to it.” He could have bought a car with the interest he lost!
robertkaplinsky.com/work/ho...
A traffic enforcement plane looking for speeding vehicles noticed a motorcycle going exceptionally fast and made some calculations based on distance and time to find the rider's speed. How can we verify if the officer's calculations were correct?
robertkaplinsky.com/work/ho...
Are your students working on radical equations? This Open Middle problem from Jonathan Newman will challenge their understandings! www.openmiddle.com/radical-...
Is anyone going to @nctm.org Denver and interested in @deadmau5.com ?!
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...
I am a huge fan of the way Juli Dixon describes just-in-time scaffolding vs just-in-case scaffolding. It helped me realize why I made the wrong choices early in my career and gave me a way to describe what we should be doing instead.
robertkaplinsky.com/just-in...
When I first started as an educational consultant, there was so much I didn't know. Fortunately, mentors went out of their way to support. I want to do the same. So, here are nine tips ALL educational consultants need to know
robertkaplinsky.com/nine-ti...
I'm not mad but how'd I get on a mailing list for a cheese conference? Like was my obsession that obvious?
The Hollywood Sign was converted from saying HOLLYWOOD to GO UCLA by some clever UCLA students. I was able to get in touch with one of the students who shared the picture he used to base his measurements off of. Great lesson for calculating area.
robertkaplinsky.com/work/uc...
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...
