Open Middle

Challenging math problems worth solving. Check out our online workshop ( and book ( by @robertkaplinsky.

[Open Middle @openmiddle]

Open Middle embedded problems let you make a warm-up in 30 seconds. See how at https://t.co/xH6iu7t5Q2. #openmiddlemath #openmiddle #mathteacher #teacher #math #education #edu #matheducation #productivestruggle #learning

[Robert Kaplinsky @robertkaplinsky]

This is my favorite problem to do with anyone who's never tried an Open Middle problem before, whether they're a student or adult.

[Robert Kaplinsky @robertkaplinsky]

I have created lots of video sharing @openmiddle problems using a lightboard on Instagram and TikTok. Here's an example.

I'd appreciate you following me there as I'm not using Twitter as often anymore.

Instagram: https://t.co/ivUqtq7Ft7
TikTok: https://t.co/OetYkLbA0U

[Open Middle @openmiddle]

Hey teachers and educators!

We just added 21 new problems to Open Middle, many of which are for High School.

Check them out at https://t.co/xH6iu7tDFA

[Open Middle @openmiddle]

You can now use Advanced Search on https://t.co/xH6iu7tDFA to find problems faster. You can find Advanced Search by clicking the "Advanced Search" link directly under the main search box.

[Open Middle @openmiddle]

Algebra teachers, check out these three rational exponent problems from Bryan Anderson. See the hints and answers on Open Middle:
https://t.co/zIpwqBkWcg
https://t.co/HkGgkcbko9
https://t.co/qpiT5zmmEY

[Open Middle @openmiddle]

This quote from HamiltonHeroes shows how students can't get enough Open Middle problems.
#iteachmath #teacher #teachers #teacherlife #math #mathteacher #matheducation #openmiddlemath #openmiddle #learning #criticalthinking #teacherhacks #teacherhack #edu

[Open Middle @openmiddle]

Help your students think deeply about radicals with this Open Middle problem from Phillip Haislip-Hansberry. https://t.co/1gWPhWjFBz

[Open Middle @openmiddle]

This quote from Kate Hayes shows how Open Middle problems lead to deeper conversations.
#iteachmath #teacher #teachers #teacherlife #math #mathteacher #matheducation #openmiddlemath #openmiddle #learning #criticalthinking #teacherhacks #teacherhack #edu

[Open Middle @openmiddle]

Are your students working on parallel and perpendicular lines? Try out these two Open Middle problems from Bryan Anderson:
https://t.co/XK0OszL9tV
https://t.co/uv9pSoatrG

[Open Middle @openmiddle]

This quote from Kori Dale shows how Open Middle problems let students build off from their mistakes, and grow.
#iteachmath #teacher #teachers #teacherlife #math #mathteacher #matheducation #openmiddlemath #openmiddle #learning #criticalthinking #teacherhacks #teacherhack #edu

[Open Middle @openmiddle]

If your students are learning about perpendicular lines, try out this Open Middle problem from Andy Schwen with them: https://t.co/Id0LfJHAMo

[Open Middle @openmiddle]

We are collecting feedback from teachers and educators who use Open Middle problems.

Please take a few minutes to complete the form below. Your feedback will help us improve Open Middle.

https://t.co/geqiMm1FoR

[Open Middle @openmiddle]

This quote from Marty Joyce shows how Open Middle problems get everyone talking - even those who don't usually.
#iteachmath #teacher #teachers #teacherlife #math #mathteacher #matheducation #openmiddlemath #openmiddle #learning #criticalthinking #teacherhacks #teacherhack #edu

[Open Middle @openmiddle]

Want to challenge your Geometry students to find the area of triangles? Try out this Open Middle problem from Dan Wulf. https://t.co/2GK5J0j3a1

[Open Middle @openmiddle]

This quote from a student shows how Open Middle problems resonate with students.
#iteachmath #teacher #teachers #teacherlife #math #mathteacher #matheducation #openmiddlemath #openmiddle #learning #criticalthinking #teacherhacks #teacherhack #edu

[Open Middle @openmiddle]

Here's a challenging Open Middle problem to help students develop conceptual understanding of quadratics in standard form: https://t.co/ZFA55Fge3m

[Open Middle @openmiddle]

This quote from MiddleWeb shows how Open Middle problems give you X-ray vision that you otherwise wouldn't have.
#iteachmath #teacher #teachers #teacherlife #math #mathteacher #matheducation #openmiddlemath #openmiddle #learning #criticalthinking #teacherhacks #teacherhack #edu

[Open Middle @openmiddle]

Here's a matrix multiplication problem from Bryan Anderson that will help you bring out their conceptual understanding. See hints and answers on Open Middle. https://t.co/aQejLl6mrc

[Open Middle @openmiddle]

This quote from Caitlin Tucker demonstrates how Open Middle problems help students find math fun!
#iteachmath #teacher #teachers #teacherlife #math #mathteacher #matheducation #openmiddlemath #openmiddle #learning #criticalthinking #teacherhacks #teacherhack #edu

[Open Middle @openmiddle]

Are your students working on radical equations? This Open Middle problem from Jonathan Newman will challenge their understandings! https://t.co/Y91rwAJmBy