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Karen CampeHello <a href="https://mathstodon.xyz/tags/Math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Math</a> folks. I'm trying to remember a problem I thought I saw here recently (but can't find) Something like this: A, B prime P < 300 Find all possible A, B, P such that A^2 + B^2 = P Can anyone point me to the post/source? Thanks. <a href="https://mathstodon.xyz/tags/iTeachMath" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#iTeachMath</a> <a href="https://mathstodon.xyz/tags/MathsEdChat" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MathsEdChat</a>

Karen CampeThe May Calendar of Problems is here! Enjoy some <a href="https://mathstodon.xyz/tags/Math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Math</a> <a href="https://mathstodon.xyz/tags/ProblemSolving" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ProblemSolving</a> in the home stretch of your school year!Plus Bonus Article "Table Techniques" using table of values as dynamic tool w/technology. <a href="https://mathstodon.xyz/tags/MTBoS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MTBoS</a> <a href="https://mathstodon.xyz/tags/iTeachMath" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#iTeachMath</a> <a href="https://mathstodon.xyz/tags/T3Learns" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#T3Learns</a> <a href="https://mathstodon.xyz/tags/MathEd" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MathEd</a> <a href="https://mathstodon.xyz/tags/MathsEdChat" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MathsEdChat</a> <a href="https://mathstodon.xyz/tags/ClassroomMath" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ClassroomMath</a> <a href="https://mathstodon.xyz/tags/RecreationalMath" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#RecreationalMath</a><a href="https://karendcampe.wordpress.com/2025/05/01/may-calendar-problems-3/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://karendcampe.wordpress.com/2025/05/01/may-calendar-problems-3/</a>

Karen CampeSolutions now posted for April Calendar of Problems! [Plus check out bonus article if you didn't see it yet 👀] May calendar coming tomorrow... <a href="https://mathstodon.xyz/tags/ProblemSolving" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ProblemSolving</a> <a href="https://mathstodon.xyz/tags/iTeachMath" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#iTeachMath</a> <a href="https://mathstodon.xyz/tags/MTBoS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MTBoS</a> <a href="https://mathstodon.xyz/tags/T3Learns" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#T3Learns</a> <a href="https://mathstodon.xyz/tags/RecreationalMath" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#RecreationalMath</a> <a href="https://mathstodon.xyz/tags/MathEd" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MathEd</a> <a href="https://mathstodon.xyz/tags/MathsEdChat" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MathsEdChat</a><a href="https://karendcampe.wordpress.com/2025/04/01/april-calendar-problems-3/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://karendcampe.wordpress.com/2025/04/01/april-calendar-problems-3/</a>

Alfonso GonzalezHow two districts are achieving math recovery <a href="https://techhub.social/tags/MathChat" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MathChat</a> <a href="https://techhub.social/tags/Math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Math</a> <a href="https://techhub.social/tags/iTeachMath" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#iTeachMath</a> <a href="https://hechingerreport.org/these-districts-are-bucking-the-national-math-slump/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://hechingerreport.org/these-districts-are-bucking-the-national-math-slump/</a>

STEMcoding ProjectGreat news! We have funding to train up to 20 Texas teachers in data science over zoom thanks to funding from WeTeach_CS (which is part of UT Austin). Over a week and a half we will go through different spreadsheet-based activities that mix science, math and computer science. Please share with your networks! Sign up at <a href="http://bit.ly/STEMcodingDS" rel="nofollow noopener noreferrer" translate="no" target="_blank">http://bit.ly/STEMcodingDS</a> <a href="https://mastodon.social/tags/iteachmath" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#iteachmath</a> <a href="https://mastodon.social/tags/iteachphysics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#iteachphysics</a> <a href="https://a.gup.pe/u/edutooters" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@edutooters</a>

Karen CampeHappy weekend! If you're inclined to do some <a href="https://mathstodon.xyz/tags/ProblemSolving" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ProblemSolving</a>, here's the April Calendar... solutions coming next week! (& May calendar too!)<a href="https://mathstodon.xyz/tags/iTeachMath" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#iTeachMath</a> <a href="https://mathstodon.xyz/tags/MTBoS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MTBoS</a> <a href="https://mathstodon.xyz/tags/MathEd" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MathEd</a> <a href="https://mathstodon.xyz/tags/MathsEdChat" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MathsEdChat</a> <a href="https://mathstodon.xyz/tags/RecreationalMath" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#RecreationalMath</a> <a href="https://karendcampe.wordpress.com/2025/04/01/april-calendar-problems-3/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://karendcampe.wordpress.com/2025/04/01/april-calendar-problems-3/</a>

dhabeckerThis article describes a problem I see daily in the math classes I visit. More teachers than we care to admit have only a shaky understanding of the math they teach. Some have a palpable FEAR of math. They deserve better support. <a href="https://mathstodon.xyz/tags/iTeachMath" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#iTeachMath</a> <a href="https://www.edsurge.com/news/2025-04-08-in-elementary-school-many-teachers-have-a-shaky-grasp-of-math-can-preparation-programs-change-that" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.edsurge.com/news/2025-04-08-in-elementary-school-many-teachers-have-a-shaky-grasp-of-math-can-preparation-programs-change-that</a>

Alfonso GonzalezTeaching Math in 2025: Dan Meyer on Tools, Trends, and True Engagement <a href="https://techhub.social/tags/MathChat" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MathChat</a> <a href="https://techhub.social/tags/iTeachMath" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#iTeachMath</a> <a href="https://www.coolcatteacher.com/e891/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.coolcatteacher.com/e891/</a>

Alfonso Gonzalez18 Strategies To Make Teaching Fractions Easier <a href="https://techhub.social/tags/MathChat" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MathChat</a> <a href="https://techhub.social/tags/iTeachMath" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#iTeachMath</a> <a href="https://www.weareteachers.com/make-teaching-fractions-easier/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.weareteachers.com/make-teaching-fractions-easier/</a>

Multiverse of MathnessIt's okay, dude. I'm pretty sure I make more mistakes in my job than you do in yours. (After all, math teachers make more obvious mistakes than any other kind of teacher.) <a class="hashtag" href="https://bsky.app/search?q=%23MultiverseOfMathness" rel="nofollow noopener noreferrer" target="_blank">#MultiverseOfMathness</a> <a class="hashtag" href="https://bsky.app/search?q=%23MathEd" rel="nofollow noopener noreferrer" target="_blank">#MathEd</a> <a class="hashtag" href="https://bsky.app/search?q=%23ITeachMath" rel="nofollow noopener noreferrer" target="_blank">#ITeachMath</a>

Karen CampeNew blog post! "Go For Geometry! Episode 6: Quadrilaterals" Using technology (all platforms) to make sense of this family of shapes. <a href="https://mathstodon.xyz/tags/MTBoS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MTBoS</a> <a href="https://mathstodon.xyz/tags/iTeachMath" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#iTeachMath</a> <a href="https://mathstodon.xyz/tags/T3Learns" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#T3Learns</a> <a href="https://mathstodon.xyz/tags/Geometry" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Geometry</a> <a href="https://mathstodon.xyz/tags/ClassroomMath" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ClassroomMath</a> <a href="https://mathstodon.xyz/tags/MathEd" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MathEd</a> <a href="https://mathstodon.xyz/tags/MathsEdChat" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MathsEdChat</a> <a href="https://karendcampe.wordpress.com/2025/04/17/go-for-geometry-6/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://karendcampe.wordpress.com/2025/04/17/go-for-geometry-6/</a>

dhabeckerA puzzle for students of all ages.<a href="https://mathstodon.xyz/tags/RecreationalMath" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#RecreationalMath</a> <a href="https://mathstodon.xyz/tags/iTeachMath" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#iTeachMath</a> <a href="https://mathstodon.xyz/tags/MathSky" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MathSky</a>

dhabeckerHere are the next few speakers for our Inspiring Math Minds webinar series. These are remarkable folks with tons to share.Free registration: <a href="https://tinyurl.com/CMC-Webinars" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://tinyurl.com/CMC-Webinars</a>@CAMathCouncil @cmcmath.bsky.social <a href="https://mathstodon.xyz/tags/iTeachMath" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#iTeachMath</a>

Fractal KittyI brushed up on my Desmos teacher activity builder skills in Desmos today and made a small intro to Conics. Yeet Paths (AKA conic Sections) <a href="https://student.desmos.com/join/xaz6th" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://student.desmos.com/join/xaz6th</a>Teacher Activity link: <a href="https://teacher.desmos.com/activitybuilder/custom/67f86620cbcb18d701967369?utm_campaign=share&utm_content=activity" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://teacher.desmos.com/activitybuilder/custom/67f86620cbcb18d701967369?utm_campaign=share&utm_content=activity</a><a href="https://mathstodon.xyz/tags/conicSections" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#conicSections</a> <a href="https://mathstodon.xyz/tags/desmos" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#desmos</a> <a href="https://mathstodon.xyz/tags/yeet" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#yeet</a> <a href="https://mathstodon.xyz/tags/mtbos" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mtbos</a> <a href="https://mathstodon.xyz/tags/iteachmath" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#iteachmath</a> <a href="https://mathstodon.xyz/tags/mathart" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mathart</a>

josh g.hey math teachers, here's some fraction bars with sliders <a href="https://www.desmos.com/calculator/ipxuahpvfc" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.desmos.com/calculator/ipxuahpvfc</a> <a href="https://mathstodon.xyz/tags/mtbos" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mtbos</a> <a href="https://mathstodon.xyz/tags/iteachmath" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#iteachmath</a> <a href="https://mathstodon.xyz/tags/mathed" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mathed</a>

Alfonso GonzalezIn Elementary School, Many Teachers Have a Shaky Grasp of Math. Can Preparation Programs Change That? | EdSurge News <a href="https://techhub.social/tags/MathChat" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MathChat</a> <a href="https://techhub.social/tags/iTeachMath" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#iTeachMath</a> <a href="https://www.edsurge.com/news/2025-04-08-in-elementary-school-many-teachers-have-a-shaky-grasp-of-math-can-preparation-programs-change-that" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.edsurge.com/news/2025-04-08-in-elementary-school-many-teachers-have-a-shaky-grasp-of-math-can-preparation-programs-change-that</a>

Alfonso GonzalezShhh, don't tell anyone, I don't use AI or even <a href="https://techhub.social/tags/EdTech" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#EdTech</a> everyday/all-the-time! 🤫 It's all about balance!So check out Dan's video to see the other side EdTech & AI evangelism. 😇 <a href="https://techhub.social/tags/MathChat" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MathChat</a> <a href="https://techhub.social/tags/AIEdu" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#AIEdu</a> <a href="https://techhub.social/tags/AIinEdu" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#AIinEdu</a> <a href="https://techhub.social/tags/iTeachMath" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#iTeachMath</a> <a href="https://techhub.social/tags/EduSky" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#EduSky</a> <a href="https://danmeyer.substack.com/p/my-15-minute-talk-from-edtechs-big" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://danmeyer.substack.com/p/my-15-minute-talk-from-edtechs-big</a>

Alfonso GonzalezDo You Have Enough Time To Teach All Your Standards In One Year? - Robert Kaplinsky <a href="https://techhub.social/tags/MathChat" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MathChat</a> <a href="https://techhub.social/tags/iTeachMath" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#iTeachMath</a> <a href="https://robertkaplinsky.com/enough-time-teach-standards-one-year/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://robertkaplinsky.com/enough-time-teach-standards-one-year/</a>

Karen CampeNew blog post! "Mental Math Monday" summarizing last week's question and many different calculation strategies. <a href="https://mathstodon.xyz/tags/MTBoS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MTBoS</a> <a href="https://mathstodon.xyz/tags/iTeachMath" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#iTeachMath</a> <a href="https://mathstodon.xyz/tags/T3Learns" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#T3Learns</a> <a href="https://mathstodon.xyz/tags/MathChat" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MathChat</a> <a href="https://mathstodon.xyz/tags/MentalMathMonday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MentalMathMonday</a> <a href="https://mathstodon.xyz/tags/MathStratChat" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MathStratChat</a> <a href="https://mathstodon.xyz/tags/ElemMathChat" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ElemMathChat</a> <a href="https://mathstodon.xyz/tags/MathSky" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MathSky</a> <a href="https://mathstodon.xyz/tags/MathsToday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MathsToday</a> <a href="https://mathstodon.xyz/tags/ClassroomMath" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ClassroomMath</a> Thanks to Howie Hua!!!<a href="https://karendcampe.wordpress.com/2025/04/07/mental-math-monday/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://karendcampe.wordpress.com/2025/04/07/mental-math-monday/</a>

Andrew D. HwangAt the start of October 2024, I agreed to rework an introductory real analysis manuscript for CRC Press. Yesterday I delivered the manuscript. Details will follow in coming weeks as they become available.If you teach introductory/intermediate real analysis, or are a school teacher looking for a friendly desk reference, please do consider the book. It relies systematically on adversarial games to explain the definitions of analysis: limits, continuity and uniform continuity, integrability, compactness,.... There are over 630 exercises, many with answers/solutions in the back. A complete solution manual will be available to instructors.The book starts with chapters on the language of mathematics and on the natural numbers, then gives axioms for the reals and works its way through the fundamental theorems of calculus, construction of elementary functions, metric spaces, and a sampling of approximation theorems (including construction of the reals as a completion of the rationals). Everything (except sets and elements) is defined, and aside from the division algorithm for integers, everything is proved. There are fun destinations, including transcendentality of \(e\), an analytic definition of \(\pi\), the many faces of exponentiation, the product-of-chord-lengths theorem in the unit circle, irrational windings on a square torus, and the evaluation of \(\zeta(2n)\) for positive integer \(n\).I took considerable care with self-containment and internal consistency, logical structuring, simplicity and expository clarity, navigability, and other matters. Whether my intentions succeeded, naturally, is up to you, the reader. <a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#math</a> <a href="https://mathstodon.xyz/tags/mathematics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mathematics</a> <a href="https://mathstodon.xyz/tags/ITeachMath" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ITeachMath</a>

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