Math Reasoning Inventory - Marilyn Burns

Math Reasoning Inventory - Marilyn Burns

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What Do Your Students Really Understand About Math?
Introducing Math Reasoning Inventory (MRI)

Marilyn Burns
Founder, Math Solutions

I began teaching math in 1962, which makes this my 50th year as a math educator! Over the past two years, I feel as if I've made a huge leap in my own learning about teaching mathematics. During this time, with support from the Bill & Melinda Gates Foundation, I've worked with a team of colleagues to develop the Math Reasoning Inventory (MRI). I'm excited to introduce this online assessment to you. It's available now, free of charge to all teachers.
MRI is a formative assessment tool that focuses on numerical reasoning. The core of MRI is a face-to-face interview: you ask your students questions, you probe their thinking and listen to how they reason, and you learn what they understand.
Over the years, I've integrated a variety of formative assessments into my teaching. However, from this work to develop MRI, I’ve come to believe that none of the assessments I used have been as informative, reliable, or compelling as the MRI interviews. From the many conversations I've had with students, I've learned that answers by themselves, without access to how students reason, can be misleading. Correct answers can hide confusion and misconceptions, and incorrect answers can mask what students really understand.
Read on to learn more, and for links to video clips that show what MRI interviews look like.