 Mathy McMatherson  Daniel Schneider
Blog by a public high school teacher in Tucson, Arizona, who graduated from the University of Arizona Secondary Mathematics Education Program. Posts, which date back to July, 2011, have included "Teaching as Creation," "Fixing Bugs Part 2: Algebra &
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 McSquared  Audrey McLaren
Blog of "a teacher's realtime journey into Web 2.0" for "anyone who loves to teach, loves technology but feels easily overwhelmed by it, nevertheless feels compelled to learn how to use it, needs things explained real slow like, is not afraid to ask
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 misscalcul8
Blog by a high school teacher of algebra and geometry who "expects to be the best teacher that has ever lived, to change the world, and to live wealthy." Posts, which date back to February, 2009, have included "This, My Friend, Is Learning," "7 Country
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 Modeling MiddleSchool Mathematics (MMM)  Bolster Education
Video lessons (on tape and via the Web) that examine the content and structure of five mathematics curricula: Connected Math Project, Mathematics in Context. MathScape, MathThematics, and Pathways to Algebra and Geometry. Included on the website are:
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 Motivating Math  Robert Bunge
A math help site focusing on basic math through introductory algebra. Suitable for secondary students and adult learners. Includes tutorials, Javabased tools, and pedagogical ideas behind the presentation.
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 Mr. Vaudrey's Class  Matt Vaudrey
Blog by a secondary educator who "wears costumes, plays loud music, stands on desks, and shows pictures and video — all to make math meaningful for his students." The contents of mathematical posts, which date back to January, 2008, have included
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 NADE Math SPIN  National Association for Developmental Education's Special Professional Interest Network for those interested in teaching mathematics
A professional organization for developmental math professionals to interact and share with each other. The site features links to best practices in developmental mathematics, newsletters, email discussion group, and conferences. Also available from
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 Numicon  Numicon, Ltd.
By representing numbers as shapes, Numicon's teaching program addresses different learning strengths with a multisensory approach. Download free mathematics display resources (for bulletin boards and the like); topics include Numicon shapes, pattern
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 Occam Press  Peter Schorer
"The skeptical mathematician is invited to improve upon the current implementations of the 3x + 1 strategy...." In addition to the Collatz conjecture, Schorer offers a simple proof of Fermat's Last Theorem, articles on Occam's Razor and programming,
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 Off The Hypotenuse  Glenn Kenyon
Kenyon started this blog in pursuit of "a good discussion of resources, ideas, and innovative ideas for teachers of Algebra." Humorous videos, comic strips, and posts, which date back to March of 2007, have included "Math Lessons learned from Karate,"
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 one good thing
Blog by a group of "dedicated, fascinated, hardworking, inspiring" secondary teachers who believe that "every day may not be good, but every day there is (at least) one good thing worth sharing. Here are our stories." Posts, which date back to January,
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 One, Two.. Infinity  Marian Small
PDFs of presentations from the professional development consultant and author of Making Math Meaningful to Canadian Students K8, More Good Questions: Great Ways to Differentiate Secondary Mathematics Instruction (9  12), Eyes on Math: A Visual Approach
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 Overthinking My Teaching  Christopher Danielson
Blog by a community college math teacher "interested in hard questions about teaching." Posts, which date back to July, 2009, have included "Wump hats," "An unnoticed rule for number language," "The end of word problems," "Cubeyness," "Cardinal and ordinal
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 PBS TeacherLine  PBS
A professional development resource delivering courses online for PreK12 teachers. Find course dates, graduate credit opportunities, and other information. Download the course tour for a preview of the experience of taking a course. See also the Virtual
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 powersfulmath  Brooke Powers
Blog by a Kentucky middle school teacher sharing "some of the ways I try and bring math to life for my students." Posts, which date back to February, 2014, have included "Standards Based Grading When You Can't Really Standards Based Grade," "Why I Always
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 Problem Solving  It Has to Begin with Noticing and Wondering  Hogan, Marie; and Alejandre, Suzanne
Middle school teacher Marie Hogan observed as the Forum's Director of Professional Development modeled a full cycle of the Problems of the Week (PoWs) in Hogan's West Covina (CA) classroom. This coauthored article about their experience around the PoW
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 Productive Struggle
Group blog, with most contributions by secondary math and science teachers, that aims to "push teachers to learn in the same way that we push our students to learn" and "work together to make our struggles productive." Posts, which date back to March,
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 The Progress Report  Dan Lemay
A web log where the author shares successes, concerns, and commentary about teaching math to high school students.
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 Project SEED
A nonprofit math consulting organization whose goal is to increase the number of minority and educationally disadvantaged youth majoring and pursuing careers in mathematics and related fields. It uses a nonlecture Socratic group style of instruction,
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 ProTeacher  ProTeacher
A teachercreated resource site for elementary schoolteachers, offering lessons and materials, education news, links for finding schools, news and weather, and a reference desk. An index of links to information on various academic subjects includes Mathematics
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 the radical rational ...  Pam Wilson
Blog by a National Board Certified Teacher (NBCT) of Algebra II and Geometry "in search of innovative ideas with a wellbalanced approach for the math classroom." Posts, which date back to July, 2011, have included "The Purpose of Life and The Quadratic
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 Ralph A. Raimi Homepage  Ralph A. Raimi
The University of Rochester Professor Emeritus' notes on math education and nontechnical
writings with a mathematics theme include Whatever became of the New Math?; Have we forgotten the value of memory?, a comment on the New York Regents' Bexamination
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 Rebecca Newburn
Links to this California teacher's Math 7 blog, and to her professional blog, a "fusion of best teaching practices, integrating technology and increasing compassion in and outside of the classroom." See also Newburn's select compilation of explanations,
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 A Recursive Process  Dan Anderson
Anderson's blog, which dates back to June of 2010, has included posts such as "Robocode & Math," "Standards Based Grading," "Cake:Frosting (A look into a proper ratio of real math:cool tech)," "Paper Towels WCYDWT (What Can You Do With This?)," "Two
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 Reflections of a Techie  Marsha Ratzel
Reflections "on using 21st century technologies to amplify learning," as blogged by a selfdescribed nerd who teachers middle grades math. Posts, which date back to July, 2003, have included "Finding the Little Truths of Math"; "Rational numbers need
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 The Republic of Mathematics  Gary E. Davis
The Republic of Mathematics™ was founded "to promote happy and productive mathematical experiences for all learners, democratize the learning and teaching of mathematics, and help empower students and teachers in their engagement with mathematics."
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 Right Brained Math  Brandon Price
"Searching for divergence and creativity in all that mathy stuff." Price teaches algebra, geometry, statistics, and robotics at Austin's Khabele School, an International Baccalaureate (IB) World School. His blog, which dates back to March, 2013, has
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 Robert Kaplinsky  Glenrock Consulting  Robert Kaplinsky
Lessons consist of "The Challenge(s)," "Question(s) To Ask," "Consider This," and alignments to Common Core State Standards (CCSS): "How Can We Water All Of The Grass?" and "How Much Money Should Dr. Evil Demand?" and "How Did They Make Ms. PacMan?"
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 The Roots of the Equation  James Cleveland
Blog by a high school algebra teacher in New York City "trying to figure out how it all fits together ... [and] creating interdisciplinary problems, projects, and thinking." A Math for America (MfA) fellow, Cleveland has blogged since June, 2011, with
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 Science Daily: Research Shows Homework Does Boost Academic Achievement; but Overemphasizing Grades and Performance May Lead to Cheating  American Psychological Association
This article, from the ScienceDaily Magazine site, describes an investigation into the effect of homework and grade emphasis on academic achievement of students and selfreported rates of cheating.
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 Seedbed  Tom O'Brien, ed.
Throughout the 1980s, Seedbed published articles on "the intellectual growth of children, and teachers' participation therein." Editor Tom O'Brien described the publication as a practical one, "where teachers are the principal authors and where teachers'
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 SINUS transfer  University of Bayreuth
Spurred by the outcome of the Trends in International Mathematics and Science Study (TIMSS), Germany launched a nationwide "model programme for increasing efficiency in mathematics and science education." Between 1998 and 2007, more than 1800 of the
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 The Socratic Method: Teaching by Asking Instead of by Telling  Rick Garlikov
An example and explanation of how to use students' (including young children's) inherent reasoning abiltiy to guide them gently and easily into an understanding of difficult ideas.
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 sonata mathematique  Rachel Kernodle
Blog by a high school math and learning specialist. Posts, which date back to June, 2011, have included "twitter math camp," "mathematical art," "i also want you to learn…," and "rational functions take two."
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 The Space Between the Numbers  Breedeen Murray
Blog by a math teacher and writer "about how these two aspects are inextricably linked together in my own person, and maybe in yours, too." Posts, which date back to June, 2010, have included "PinkSlip to Private School," "SBG, Hold the G," "A Different
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 STEM: Science, Technology, Engineering, Mathematics  Center on Instruction at RMC Research Corporation
Webinars and other resources for mathematics instruction and assessment: research metaanalyses and summaries, practitioner guides, tools, examples from the field, standards and assessments, and professional development modules, training materials, and
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 Studying Dimensionality through a StairStep Fractal  Burrill, Frost, Anderson, Burkett, Gribble, Ryerson, & Williams
A background paper and a related classroom activity about a lesson studyproduced activity on using a stairstep fractal to study other dimensions.
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 Teachers TryScience
Free lessons, teaching strategies, and resources to spark students' interest in science, technology, engineering and math (STEM). The Teachers TryScience site features collaboration tools for discussing and sharing effective instructional practices. Teachers
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 Teaching and Learning Undergraduate Mathematics  The Mathematical Association (UK)
Read Talum newsletters, 1993  2000. Articles include "Learning to Teach"; "The Case for Geometry"; "Intuiting Mathematical Objects Using Diagrams and Kinetigrams"; "Teaching Mathematical Analysis"; and "Using a Theory of Learning in a College Mathematics
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 Teaching Like It's 2999!  Jennie Cho Magiera
After her "world was completely changed thanks to a grant approval for 32 iPads," this 5th grade math teacher in the Chicago Public Schools has used the technology to improve assessment practices and increase differentiation. Posts in her blog, which
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 teaching/math/culture  Ilana Horn
Blog by a professor in Vanderbilt University's Teaching and Learning Department "interested in broadening our notions of mathematical competence. What do classrooms look like that are inclusive and incorporate rich mathematics?" Posts, which date back
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 Teaching Math to Young Children  Rick Garlikov
One of a series of webpages to help students understand math, and to help parents teach their children math  especially to help children have a good foundation. (These are not pages to teach the mere recipes or algorithms for solving problems.)
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 TeachingWorks
Establishing a "professional system for the training of teachers" through "a common curriculum for professional training that focuses on highleverage practices and on the subjectmatter knowledge needed for teaching; performance assessments of teachers'
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 Teach Kids Math With Model Method  Zach
Tutorials for parents or teachers, of the Model Method, widely used in Singapore Math by Singaporean teachers, tutors, and parents. Covers the method for basic operations, fractions, decimals, percents, averages, and ratio.
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 ThinkThankThunk  Shawn Cornally
Blog by an Iowa headmaster and teacher of science, technology, engineering, and math (STEM). See, in particular, Cornally's collection of posts on StandardsBased Grading (SBG) and ongoing series on Honors Calculus course lessons, titled "Calculus: A
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 ThinkWave.com
A free web community that provides secure internetbased communication for parents, students, and teachers: realtime information about attendance, assignments, grades, and school curriculum.
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 To Accumulate a Rate — Integrate!  Kaleb Allinson
Allinson teaches trigonometry and AP Calculus AB at Lake Stevens High School (WA), where he also serves as the math department head. He describes his blog as a venue to "help me reflect on my teaching.... and record the unique [ideas] I came up with for
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 UCSB Department of Mathematics Center for Mathematical Inquiry  Regents of the University of California
Developing "inquirybased learning approaches in the teaching of mathematics and a research base that examines teaching and learning through inquirybased practices." See past workshops, course materials for University of California Santa Barbara (UCSB)
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 Understanding 'Rate' Word Problems  Rick Garlikov
A conceptual explanation of doing various kinds of math "rate" problems (e.g., "distance/speed/time" problems, problems involving combining work done by different agents working at different rates of speed, quantity/proportion problems, etc.).
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 Unsilence Students' Voices  Suzanne Alejandre
Article discussing how to provide an opportunity for all students to contribute to math classroom discussions. Originally published in the September, 2012, issue of the CMC ComMuniCator, journal of the California Mathematics Council, this article intersperses
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