Math Co-Lab

A collection of resources, blogs, student work examples, and great ideas for supporting math teachers' learning.

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Math task blog that tackles the difference between mass and volume in two boxes of clay through a noticings/wondering exercise.

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http://www.jstor.org/stable/10.5951/mathteacher.108.5.0336

An article in The Mathematics Teacher about exploring number patterns in a calendar to support early algebraic reasoning and moving to more proof-like arguments. Similar to use of choral counts.

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Three act lessons for elementary classrooms, organized by standard.

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Decimal decision tasks and student work and reasoning about why 2/.1 is 20, not .2

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4th Grade Math Lesson -- Introduction to Circles

Introduction to Circles - Math lesson at Shanghai Mingxing School by Yang Yu. TPEG 2014 Trip to Shanghai.

Pretty incredible example of inquiry-based introduction to the ‘anatomy’ of circles as functional tools. This lesson was recorded in Shanghai, translated by graduate students at Vanderbilt. 40+ students in the room, but the concept of “radius,” “infinity,” and relationship between circles and other regular polygons is introduced through a simple task: how can we cut out a circle?

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Tasks from the YouCubed team and Jo Boaler. Indexed by grade level, practice standard, and mathematical topic.

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We are working to develop a repertoire of tools to support teacher educators design and enact practice-based opportunities for teachers.

Resources for general teacher education pedagogies, like leading rehearsals and screening classroom video in teacher ed settings.

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Number Strings

a community for number string design

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Resources, facilitation protocols/guides, and videos for supporting teachers to use number strings.

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Choral counting: What, how, & resources from UW’s TEDD site. Includes protocols, ideas and resources for planning, launching, videos, etc.

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Exploring different ways to get from 6 to 8 in equally-sized units, depending on the number of ‘steps’ to get there on the number line. Great use of open number line, intermingles decimal notation with mixed numbers.

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Great example of investigating “random” in two different ways - distribution vs. distribution of “second roll” by my friend Jason in Seattle. 

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Math Mistakes

Great resource that indexes math mistakes and invites commenters to interpret, unpack, and plan instructional responses. All grade levels represented, indexed by common core standards.

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Decimals « MathMinds

Choral counting in .3 using rows of 5, rows of 6. Examples of student work/thinking.