Ready to dig into depth of knowledge! @robertkaplinsky #CASTEM15 pic.twitter.com/WV9pBwdTa2

— Lindsey Blass (@LindseyBlass1) October 29, 2015

DOK with @robertkaplinsky at #CASTEM15 pic.twitter.com/LNwx2R85I2

— Josh Davis (@jodavisTTS) October 29, 2015

Rigor is command of concepts not just making things harder. @robertkaplinsky #CASTEM15

— Josh Davis (@jodavisTTS) October 29, 2015

@robertkaplinsky Great session. Thanks!

— Carrie Balmages (@MrsBalmages) October 29, 2015

@robertkaplinsky blowing my mind in depths of knowledge for math #CASTEM15 #DUSDSTEM

— DSK (@sancheeler) October 29, 2015

My head is hurting with these math problems #CASTEM15 #DUSDSTEM @robertkaplinsky pic.twitter.com/ywKzGsUYib

— DSK (@sancheeler) October 29, 2015

DOK levels with @robertkaplinsky #CASTEM15 #dusdstem pic.twitter.com/s4hknFKl4j

— Josh Davis (@jodavisTTS) October 29, 2015

Value of o-m questioning. People often misuse open-middle and open-ended as though they are interchangeable. @robertkaplinsky #CASTEM15

— Lindsey Blass (@LindseyBlass1) October 29, 2015

Did @robertkaplinsky sneak Open Middle into his session at #CASTEM15 with a shout out to #mtbos? Yes, yes he did. pic.twitter.com/SvWgAE8pEo

— John Stevens (@Jstevens009) October 29, 2015

Now @robertkaplinsky is giving his attendees a Call to Action: DO SOMETHING WITH WHAT YOU’VE LEARNED! #CASTEM15 pic.twitter.com/PSe0C2WTyb

— John Stevens (@Jstevens009) October 29, 2015

@robertkaplinsky thanks for the inspiration and resources to dig deeper with DOK (and for the selfie)! #CASTEM15

— Lindsey Blass (@LindseyBlass1) October 29, 2015

@JudithKeeney Was eager to show you DOK levels via @robertkaplinsky. His STEM workshop was the best by far!!! https://t.co/L9L3842V7C

— Kristen M. Acosta (@aprilf4175) October 30, 2015

@robertkaplinsky Awesome workshop today! Super thrilled to have finally seen you in person! Eager to explore open middle!

— Kristen M. Acosta (@aprilf4175) October 30, 2015