Sara VanDerWerf

PEMDAS (boo) & Bathroom Signs (yea)

14 years into my teaching career I transferred from a high school to a

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Visualizing Exponential, Power & Logarithmic Functions

Hello friends! It has been awhile since I last posted – over 2

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Guest Post #2: Challenging our Unconscious Biases from Barb Everhart

26 years ago I was in the Math Ed program at the University of Minnesota

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Week 1 Day 2 – Top 10 things not to ask me about your calculator.

On the 2nd day of school last year I sent out a tweet about the top 10

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Guest Post: Popsicle Sticks, Glitter & Math from Stephanie Woldum

JUNE 2018 UPDATE TO THIS POST IS FOUND AT THE BOTTOM – SCROLL DOWN. This

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How Grand is Your Total? A 25 year old Open Middle problem.

I am sure you are wondering what OPEN MIDDLE problems looked like 25 years

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Wall of Shame Part 2! 72 New downloadable images.

Last December, 2015 I posted 80 math fails that you could download to make

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Unit Pictures

In a recent post I talked about my love of unit problems from back in the

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Week 1 Day 1 – Name Tents with Feedback

Last year I taught Advanced Algebra (your might call this course Alg 2

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Why I give my students a system of 6 equations to solve on Day 1 of school.

One bit of advice I give student teachers when they observe a classroom

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My personal math mentors.

A week ago Annie Perkins, a phenomenal 4th-year math teacher/leader in

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Tonight I got the human side of teaching right.

Here is what I know for sure. There is someone, most likely a teacher,

The Olympics, race walking & tips on redesigning a lesson. Part 2 of 2.

This is part 2 of 2 of a post about an amazing teacher, Mr. Smith, who

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Launching a Task – Tips from Mr. Smith (part 1 of 2)

In 2004 I left my first teaching job of 13 years at a high school to teach

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Evangelizing Desmos

Recently I asked a group of 200 adults (10% were math teachers) to hold

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I am the Chief Evangelist for…

I have given myself a new job title and I would like you to join me in