• Play with your Problems

  Sep 10, 2025

• You Should Lead With That

  Dec 14, 2024

• RIP-BoS: A Tribute to the Math-Twitter Blog-O-Sphere

  Feb 9, 2024

• Going with Your Gut

  Sep 4, 2023

• The Interview Quiz

  Jun 22, 2023

• NCTM LA Ignite!

  Nov 4, 2022

• Trinomial Factoring Match

  Mar 31, 2022

• Triangles and Trapezoids

  Nov 6, 2021

• Oops, I forgot: Productive forgetting and convenient remembering

  Nov 2, 2021

• COVID Math Fair

  Apr 28, 2021

• The Bucket of Zero

  Apr 16, 2021

• Animating Quadratic Patterns

  Apr 15, 2021

• Report on a Math Tournament

  Dec 7, 2020

• Thoughts on Thinking Classrooms

  Nov 3, 2020

• Upscale Pattern Blocks

  Mar 17, 2020

• An Improbable Run at the Rosenthal Prize

  Jan 11, 2020

• All-But-One Desmos

  Nov 4, 2019

• Thinking Upstream with a Quadratics Menu

  Apr 10, 2019

• Using Visible Random Groups in Assessments

  May 15, 2018

• Prime Climb Puzzles

  Apr 24, 2017

• FractionTalks.com

  Feb 19, 2016

• Desmosification: Building Custom Parabolas

  Dec 19, 2015

• Fraction Talks

  Jun 14, 2015

• Large Whiteboard Project

  Mar 3, 2015

• Creating Communities of Discourse: Large Whiteboards

  Nov 6, 2013