Mark Barry
mdbarry17.bsky.social
Mark Barry
@mdbarry17.bsky.social
Father, husband, math educator, Desmos Fellow.
Starting off year 15 with building connections and collaboration. #wheredoesyourpiecefit #iteachmath
August 13, 2025 at 5:49 PM
Today in math class we are using my trip to the strawberry farm to find the best purchase option. #iteachmath
April 28, 2025 at 4:01 PM
Brought my kids magna-tiles into the classroom today to help explore and visualize volume and surface area of 3D shapes. #iteachmath
April 15, 2025 at 9:42 PM
We had a fun day in math today! We calculated the probability of my own children leaving an event happy. Students were very engaged and thoughtful to suggest a bag of cotton candy may fix any disappointment! #iteachmath
March 19, 2025 at 6:45 PM
The social studies teacher had students create a haiku about one of their classes. This student’s submission made my day! #iteachmath
February 25, 2025 at 5:54 PM
Can a 7th grader keep pace with a gold medalist for 30 meters? The answer was shocking to many, that even at a full sprint they could only keep up with the marathoner. #thinkingclassroom #iteachmath
August 27, 2024 at 7:09 PM
Doing a little math play with my daughter. How would you compare these countries success? #iteachmath
July 30, 2024 at 9:41 PM
I don’t know why this is bugging me so much, but this seems like a minuscule amount of juice to be bragging about even for flavored water. How many slices of each would you put in? How does it compare these amounts? #iteachmath
May 30, 2024 at 1:23 AM
After my morning workout, I looked at my history of meters rowed and my math teacher brain kicked in. What do you notice/wonder? Is there any correlation/causation between dates and meters? What might the next 6 months of meters rowed look like? #iteachmath
February 27, 2024 at 5:21 PM
My wife and I have very different opinions on how to handle this situation. I am glad to see students agree more with me! What would you do? #iteachmath
December 7, 2023 at 5:07 PM
Sometimes students know how to brighten your days! #iteachmath
November 3, 2023 at 7:46 PM
Loved using the stronger and clearer routine when introducing circles.
curriculum. Students showed so much persistence and growth. I also love playing the "dummy" and trying to create exactly what they write. #iteachmath
October 19, 2023 at 9:58 PM
Excited to start digging into Desmos in 3D!!! I was anxious at first, but the quests help guide my creativity and thinking!
September 29, 2023 at 3:05 AM
I’ve had an internal conflict for years about constant of proportionality and how to best support student thinking. What are your next moves to students who do this thinking below? What is right, where do they have a misconception? #iteachmath #mtbos
September 28, 2023 at 2:33 PM