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tweeps to follow, people to read... categorized

There are a lot of math teacher twitters and bloggers out there. What we've done to help you through the muck and the mire is make a few lists of bloggers/twitterers in some broad categories. To be clear, these are not comprehensive lists, nor are they meant to be. And naturally, there are definitely overlaps among the categories. There are tons more we could have added in each section. But we figured we'd give you a few to help you get started. If you're looking to simply search the online math teacher community for specific lessons, we have this #MTBoS search engine!

However if you're looking for a more comprehensive list, here's a searchable directory of people who blog and tweet!
By now you've learned how to add blogs to your blog reader, and how to follow various twitterers. So go at it! 

by academic level

Elementary School Math
Graham Fletcher [@gfletchy] - gfletchy.wordpress.com
Nancy and Kristin (@MathMinds) - mathmindsblog.wordpress.com
Joe Schwartz - exit10a.blogspot.com
Michael Pershan [@mpershan] - rationalexpressions.blogspot.com
Mashka - trickyprekmath.blogspot.com
Anna Weltman [@AnnaWeltman] - recipesforpi.wordpress.com/
Math Missy - mathmissy.wordpress.com/
International School of Toulouse - pinkmathematics.blogspot.com/
Teacher Tom [@TheTeacherTom] - teachertomsblog.blogspot.com/
Kara Imm and Rachel Lambert - numberstrings.com
Tracy Zager (@tracyzager) - tjzager.wordpress.com
Brian Stockus (@bstockus) - bstockus.wordpress.com/

Middle School Math
David Cox (@dcox21) - coxmath.blogspot.com
Paul Salomon (@lostinrecursion) - lostinrecursion.wordpress.com/
Simon Job (@simonjob) - mathsclass.net
Michelle (@park_star) - meandthedoor.wordpress.com 
Sadie Estrella (@wahedahbug) - iamamathnerd.wordpress.com/
Fawn Nguyen (@fawnpnguyen) - fawnnguyen.com 
Mary Dooms (@mary_dooms) - teacherleaders.wordpress.com/
Sherrie Nackel (@luvbcd) - 7thgrademathteacherextraordinaire.blogspot.com/
Karlene Steelman (@KSteelwoman) - mathatmoragamiddle.org/
Avery Pickford (@woutgeo) - withoutgeometry.com 
Caryn Trautz (@mathtechy) - mathtechyblog.blogspot.com/
Michael Fenton (@mjfenton) - reasonandwonder.com

Algebra 1
David Cox (@dcox21) - coxmath.blogspot.com
Sean Sweeney (@sweenwsweens) - sweeneymath.blogspot.com
James Cleveland (@jacehan) - rootsoftheequation.wordpress.com
Dan Meyer (@ddmeyer) - blog.mrmeyer.com/
Elissa Miller (@misscalcul8) - misscalculate.blogspot.com
Fawn Nguyen (@fawnpnguyen) - fawnnguyen.com  
Elizabeth (@cheesemonkeysf) - cheesemonkeysf.blogspot.com 
Bob Lochel (@bobloch) - http://mathcoachblog.com/
Anna Blinstein (@Borschtwithanna) - borschtwithanna.blogspot.com
Lisa Henry (@lmhenry9) - teachesmath.com
Heather Kohn (@heather_kohn) - growingexponentially.wordpress.com/
Tina C. (@crstn85) - drawingonmath.blogspot.com/
Nat Banting (@NatBanting) - musingmathematically.blogspot.com
Rachel Kernodle (@rdkpickle) - sonatamathematique.wordpress.com
Kathryn Freed (@kathrynfreed) - restructuringalgebra.blogspot.com/
Carl Oliver (@carloliwitter) - coast2coast.me/carl
Michael Fenton (@mjfenton) - reasonandwonder.com

Geometry
Kate Nowak (@k8nowak) - function-of-time.blogspot.com
Tina C. (@crstn85) - drawingonmath.blogspot.com/
Marsha Foshee (@MarshaFoshee) - math-termind.blogspot.com
Elissa Miller (@misscalcul8) - misscalculate.blogspot.com
Elizabeth (@cheesemonkeyst) - cheesemonkeysf.blogspot.com
Fawn Nguyen (@fawnpnguyen) - fawnnguyen.com
Julie Reulbach (@jreulbach) - ispeakmath.wordpress.com/  
Sameer Shah (@samjshah) - www.samjshah.com
Lisa Bejarano (@lisabej_manitou) - crazymathteacherlady.wordpress.com/
Mimi (@untilnextstop) - untilnextstop.blogspot.com/
Pam Wilson (@pamjwilson) - pamjwilson.wordpress.com
Kelly O'Shea (@kellyoshea) - kellyoshea.wordpress.com
Teresa Ryan (@geometrywiz) - geometrywiz.wordpress.com/

Algebra 2/Pre-Calculus
Sean Sweeney (@sweenwsweens) sweeneymath.blogspot.com
Kristen Fouss (@Fouss) - kfouss.blogspot.com/
Elissa Miller (@misscalcul8) - misscalculate.blogspot.com
Rachel Kernodle (@rdkpickle) -sonatamathematique.wordpress.com/
David Peterson (@calcdave) - Longtailsofinterest.blogspot.com
Kate Nowak (@k8nowak) - function-of-time.blogspot.com
Jonathan Claydon (@rawrdimus) - infinitesums.com/  
Dan Anderson (@dandersod) - http://blog.recursiveprocess.com/
Anna Blinstein (@Borschtwithanna) - borschtwithanna.blogspot.com
Mimi (@untilnextstop) - untilnextstop.blogspot.com/
Beth Ferguson (@algebrasfriend) - algebrasfriend.blogspot.com/
Pam Wilson (@pamjwilson) - pamjwilson.wordpress.com
Tina C. (@crstn85) - drawingonmath.blogspot.com/
Megan Schmidt (@Veganmathbeagle) - mathybeagle.com/
Michael Fenton (@mjfenton) - reasonandwonder.com

Calculus
Sean Sweeney (@sweenwsweens) - sweeneymath.blogspot.com
David Peterson (@calcdave) - Longtailsofinterest.blogspot.com 
Dan Anderson (@dandersod) - http://blog.recursiveprocess.com/
Bowman Dickson (@bowmanimal) - www.bowmandickson.com
Mimi (@untilnextstop) - untilnextstop.blogspot.com/

Statistics
Marsha Foshee (@MarshaFoshee) - math-termind.blogspot.com
David Peterson (@calcdave) - Longtailsofinterest.blogspot.com
Glenn Waddell (@gwaddellnvhs) - blog.mrwaddell.net
Bob Lochel (@bobloch) - http://mathcoachblog.com/
Hedge (@approx_normal) - approximatelynormalstats.blogspot.com/
S T (@druinok) - statteacher.blogspot.com 
Pam Wilson (@pamjwilson) - pamjwilson.wordpress.com
Megan Schmidt (@Veganmathbeagle) - mathybeagle.com/

Special Education
Andrew Gael (@bkdidact) - thelearningkaleidoscope.wordpress.com
Anya Ostapczuk (@anyaostapczuk) - teachinginspecialeducation.blogspot.com
Caryn Trautz (@mathtechy) - mathtechyblog.blogspot.com
Bridget Dunbar (@bridgetdunbar) - elsdunbar.wordpress.com
Matt Vaudrey (@mrvaudrey) - mrvaudrey.com
Kate Clapp (@fourkatie) - axisofreflection.blogspot.com

Instructional Coaches/Specialists
Hedge (@approx_normal) - approximatelynormalstats.blogspot.com/
Kristen Fouss (@fouss) - kfouss.blogspot.com/
David Petro (@davidpetro314) - ontariomath.blogspot.ca/, engaging-math.blogspot.ca/

Non-U.S.
Mary Bourassa (@MaryBourassa) - mathgeek.ca/
Nat Banting (@NatBanting) - musingmathematically.blogspot.com
Michelle (@park_star) - meandthedoor.wordpress.com 
Alex Overwijk (@AlexOverwijk) - slamdunkmath.blogspot.com/
Audrey McLaren (@a_mcsquared) - audrey-mcsquared.blogspot.ca/
Nik (@nik_d_maths) - spectatormaths.wordpress.com/
Laura Wheeler (@wheeler_laura) - mslwheeler.wordpress.com/
Jim Pai (@PaiMath) - intersectpai.blogspot.com/
by interest

Arts & Craft in the Math Classroom 
S T (@druinok) - statteacher.blogspot.com
Malyn Mawby (@malynmawby) - malyn.edublogs.org
Pam Wilson (@pamjwilson) - pamjwilson.wordpress.com
Paul Saloman (@lostinrecursion) - lostinrecursion.wordpress.com
Anthony Rosetti (@aanthonya) - solveandsimplify.blogspot.com 
Jonathan Claydon (@rawrdimus) -  infinitesums.com/ 
Megan Schmidt (@Veganmathbeagle) - mathybeagle.com/

Games & Gamification in Math
Elizabeth (@cheesemonkeysf) - cheesemonkeysf.blogspot.com
Malyn Mawby (@malynmawby) - malyn.edublogs.org
James Cleveland (@jacehan) - rootsoftheequation.wordpress.com
Sean Sweeney (@sweenwsweens) - sweeneymath.blogspot.com
Kate Nowak (@k8nowak) - function-of-time.blogspot.com
Rebecka Peterson (@RebeckaMozdeh) - www.epsilon-delta.org
Julie Reulbach (@jreulbach) - ispeakmath.wordpress.com 

Interdisciplinary Work 
Elizabeth (@cheesemonkeysf) - cheesemonkeysf.blogspot.com
Malyn Mawby (@malynmawby) - malyn.edublogs.org
James Cleveland (@jacehan) - rootsoftheequation.wordpress.com
John Burk (@occam98) - quantumprogress.wordpress.com
Dave Coffey (@delta_dc) - deltascape.blogspot.com
John Berray (@johnberray) - johnberray.wordpress.com
Amber Caldwell (@AmberDCaldwell) - ambercaldwell.wordpress.com
Michelle (@park_star) - meandthedoor.wordpress.com
Malke Rosenfeld (@mathinyourfeet) - mathinyourfeet.blogspot.com


Modeling Approach to Teaching
Frank Noschese (@fnoschese) - fnoschese.wordpress.com
Julie Reulbach (@jreulbach) - ispeakmath.wordpress.com
John Burk (@occam98) - quantumprogress.wordpress.com
David Cox (@dcox21) - coxmath.blogspot.com
John Berray (@johnberray) - johnberray.wordpress.com
Marshall Thompson (@MTChirps) - mtsmc.blogspot.com
Christy (@wyldbirman) - handsonmathinhighschool.blogspot.com
Sean Sweeney (@sweenwsweens) - sweeneymath.blogspot.com 

Classroom Organization 
Julie Reulbach (@jreulbach) - ispeakmath.wordpress.com
Pam Wilson (@pamjwilson) - pamjwilson.wordpress.com
Tina C (@crstn85) - drawingonmath.blogspot.com
John Scammell (@thescamdog) - thescamdog.wordpress.com
Marsha Foshee (@marshafoshee) - math-termind.blogspot.com
Elissa Miller (@misscalcul8) - misscalculate.blogspot.com
Sherrie Nackel (@luvbcd) - 7thgrademathteacherextraordinaire.blogspot.com 
Jonathan Claydon (@rawrdimus) -  infinitesums.com/ 

Classroom Management
Elizabeth (@cheesemonkeysf) - cheesemonkeysf.blogspot.com
Shireen D (@MTMambo) - mathteachermambo.blogspot.com
Daniel Schneider (@mathymcmatherso) - mathymcmatherson.wordpress.com
Anne Schwartz (@sophgermain) - abrandnewline.wordpress.com
Sadie Estrella (@wahedahbug) - iamamathnerd.wordpress.com/
Marshall Thompson (@MTChirps) - mtsmc.blogspot.com 

Standard-Based Grading
Shawn Cornally (@ThinkThankThunk) - shawncornally.com/wordpress
Dan Meyer (@ddmeyer) - blog.mrmeyer.com
Sam Shah (@samjshah) - www.samjshah.com
Kelly O'Shea (@kellyoshea) - kellyoshea.wordpress.com
Michael Pershan (@mpershan) - rationalexpressions.blogspot.com
Lisa Henry (@lmhenry9) - teachesmath.com
Kate Nowak (@k8nowak) - function-of-time.blogspot.com
Anya Ostapczuk (@anyaostapczuk) - teachinginspecialeducation.blogspot.com

Projects & Rich Tasks
Dan Meyer (@ddmeyer) - blog.mrmeyer.com
Bowman Dickson (@bowmanimal) - bowmandickson.com
Andrew Stadel (@mr_stadel) - divisibleby3.blogspot.com
Rachel Kernodle (@rdkpickle) - sonatamathematique.wordpress.com
Dave Coffey (@delta_dc) - deltascape.blogspot.com
Mathalicious (@mathalicious) - mathalicious.com
Daniel Schneider (@mathymcmatherso) - mathymcmatherson.wordpress.com
Anna Blinstein (@Borschtwithanna) - borschtwithanna.blogspot.com
Andrew Gael (@bkdidact) - thelearningkaleidoscope.wordpress.com
Carl Oliver (@carloliwitter) - coast2coast.me/carl
Michael Fenton (@mjfenton) - reasonandwonder.com

Technology in the Math Classroom
Julie (@jreulbach) - ispeakmath.wordpress.com
Dan Meyer (@ddmeyer) - blog.mrmeyer.com
Bowman Dickson (@bowmanimal) - bowmandickson.com
Nat Banting (@NatBanting) - musingmathematically.blogspot.com
Kristen Fouss (@fouss) - kfouss.blogspot.com/
Penny Bentley (@penpln) - penbentley.com
Sean Sweeney (@sweenwsweens) - sweeneymath.blogspot.com
Anthony Rosetti (@aanthonya) - solveandsimplify.blogspot.com
Malyn (@malynmawby) - malyn.edublogs.org 
David Wees (@davidwees) - davidwees.com/discuss 
Audrey McLaren (@a_mcsquared) - audrey-mcsquared.blogspot.ca/
Andrew Gael (@bkdidact) - thelearningkaleidoscope.wordpress.com
Caryn Trautz (@mathtechy) - mathtechyblog.blogspot.com
Matt Vaudrey (@mrvaudrey) - mrvaudrey.com
Carl Oliver (@carloliwitter) - coast2coast.me/carl
Michael Fenton (@mjfenton) - reasonandwonder.com
John Stevens (@jstevens009) - www.fishing4tech.com
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