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
Starting off year 15 with building connections and collaboration. #wheredoesyourpiecefit #iteachmath
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
Today in math class we are using my trip to the strawberry farm to find the best purchase option. #iteachmath
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
Brought my kids magna-tiles into the classroom today to help explore and visualize volume and surface area of 3D shapes. #iteachmath
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
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
Warm up question of the day, “What do you call a snake that measures 3.14 meters long?”… a Pi-thon! The genuine giggles of a few totally made the day! #iteachmath
March 14, 2025 at 7:22 PM
Warm up question of the day, “What do you call a snake that measures 3.14 meters long?”… a Pi-thon! The genuine giggles of a few totally made the day! #iteachmath
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
The social studies teacher had students create a haiku about one of their classes. This student’s submission made my day! #iteachmath
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
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
Doing a little math play with my daughter. How would you compare these countries success? #iteachmath
July 30, 2024 at 9:41 PM
Doing a little math play with my daughter. How would you compare these countries success? #iteachmath
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
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
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
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
Finally tried 2 students for 1 computer for my @desmosclassroom lesson today. Students did not disappoint. Heard lots of great ideas being shared. Not sure why it took me so long to try it out. #iteachmath
February 15, 2024 at 8:50 PM
Finally tried 2 students for 1 computer for my @desmosclassroom lesson today. Students did not disappoint. Heard lots of great ideas being shared. Not sure why it took me so long to try it out. #iteachmath
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
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
I edited the data and activity from @
Desmos Classroom’s culminating Unit 3 Describing Data activity to meet student interests. I think I may have had more fun looking for correlations in Jayson Tatum's data. #iteachmath teacher.desmos.com/activitybuil...
Desmos Classroom’s culminating Unit 3 Describing Data activity to meet student interests. I think I may have had more fun looking for correlations in Jayson Tatum's data. #iteachmath teacher.desmos.com/activitybuil...
November 13, 2023 at 5:45 PM
I edited the data and activity from @
Desmos Classroom’s culminating Unit 3 Describing Data activity to meet student interests. I think I may have had more fun looking for correlations in Jayson Tatum's data. #iteachmath teacher.desmos.com/activitybuil...
Desmos Classroom’s culminating Unit 3 Describing Data activity to meet student interests. I think I may have had more fun looking for correlations in Jayson Tatum's data. #iteachmath teacher.desmos.com/activitybuil...
What are your best strategies to have students stop number plucking and make sense of a problem? I have been trying to give more thinking tasks and numberless word problems but feel like I am still doing too much lifting. Do I just need to be more patient? #iteachmath
November 9, 2023 at 4:57 PM
What are your best strategies to have students stop number plucking and make sense of a problem? I have been trying to give more thinking tasks and numberless word problems but feel like I am still doing too much lifting. Do I just need to be more patient? #iteachmath
Sometimes students know how to brighten your days! #iteachmath
November 3, 2023 at 7:46 PM
Sometimes students know how to brighten your days! #iteachmath
Sometimes all it takes is reviewing your class norms TOGETHER. That made today a really productive and good day. ♾️
October 24, 2023 at 9:47 PM
Sometimes all it takes is reviewing your class norms TOGETHER. That made today a really productive and good day. ♾️
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
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
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
curriculum. Students showed so much persistence and growth. I also love playing the "dummy" and trying to create exactly what they write. #iteachmath
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
Excited to start digging into Desmos in 3D!!! I was anxious at first, but the quests help guide my creativity and thinking!
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
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
Hi! I am middle school math educator, who considers himself a Desmos and Thinking Classroom enthusiast. I am excited to share some success stories and to learn from others too in this #Iteachmath community.
September 22, 2023 at 10:21 PM
Hi! I am middle school math educator, who considers himself a Desmos and Thinking Classroom enthusiast. I am excited to share some success stories and to learn from others too in this #Iteachmath community.