Mr. T

/Brian Twitchell

About Brian Twitchell

I spent 24 years as a high school math teacher at Mt. Abram High School and am currently the district math coach in RSU #74

Talking about Numbers

Mathematical Discourse In Principles to Actions (2014), NCTM proposes 8 principles for teachers to implement in their teaching of mathematics. The fourth principle is "Facilitate Meaningful Mathematical Discourse", while principle number five is "Post Purposeful Questions." One of the best ways I have discovered this year to implement these practices it to introduce "Number Talks" [...]

By | 2018-02-11T00:09:30+00:00 February 11th, 2018|General|0 Comments

Multiplication – Multiple Methods

To the surprise of many people, there are multiple methods for multiplication. Every so often, a "new" fad in doing arithmetic makes the rounds on social media. One that is currently going around is termed the "Multiplication - the Japanese Way".  Here's one video that shows the process: Professor Puzzler ( has [...]

By | 2017-11-30T13:57:36+00:00 November 22nd, 2017|General|0 Comments

What’s with this new math?

Is there really "New Math"? The internet is full of images and posts bemoaning the "New Math" and "Common Core Math", as a major step backwards in student mathematical performance. I am presenting what I believe to be a alternate view point of this position, however. A common theme is that this "new method" [...]

By | 2017-11-07T19:59:36+00:00 November 7th, 2017|Standards|0 Comments

Mapping the Standards

Mapping standards Mapping standards is an important task for many educators. A map of the standards is a graphical display that shows connections between different standards. These connections can be either within a grade level or between different grade levels. This map allows teachers to examine more closely the skills and knowledge that students [...]

By | 2017-09-17T22:35:37+00:00 September 16th, 2017|Proficiency-Based, Standards|0 Comments

Problem Solving – the Good and the Bad

Problems with Problem Solving One of the most important skills students can have, and yet one of the most difficult to teach, is the skill of problem solving. In the Standards of Mathematical Practice, it says that students should be able to "Make sense of problems and persevere in solving them." The skill [...]

By | 2017-09-11T20:16:37+00:00 September 11th, 2017|General|0 Comments

Traditional versus Proficiency Based Grading System

Traditional Grading System The following conversation is one that could readily occur when a student brings home a report card under our traditional grading system. Congratulations! You got an 89 in your Algebra 1 course! That sure represents a lot of hard work. Can you please tell me, from that grade, what topics you [...]

By | 2017-08-13T19:50:21+00:00 August 11th, 2017|Grading|0 Comments

Problems with Problem Solving

One of the most challenging parts of teaching problem solving is encouraging students to not give up. One of the standards for mathematical practice in the Common Core references this: CCSS.MATH.PRACTICE.MP1 Make sense of problems and persevere in solving them. I was given a link to another blog with one possible strategy to address this. [...]

By | 2017-08-06T14:44:38+00:00 August 6th, 2017|General|2 Comments

Welcome to Maine Math Teacher!

Welcome to Maine Math Teacher! Hi! My name is Brian Twitchell, and you have found your way on to my website, Maine Math Teacher. I created this website in the summer of 2017, partly to satisfy requirements for a graduate program I am enrolled in for Math Leadership, and partly to create a resource [...]

By | 2017-07-22T23:34:34+00:00 July 22nd, 2017|General|0 Comments