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Karen Campe<p>New blog post! "Mental Math Monday" summarizing last week's question and many different calculation strategies.<br><a href="https://mathstodon.xyz/tags/MTBoS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MTBoS</span></a> <a href="https://mathstodon.xyz/tags/iTeachMath" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>iTeachMath</span></a> <a href="https://mathstodon.xyz/tags/T3Learns" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>T3Learns</span></a> <a href="https://mathstodon.xyz/tags/MathChat" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MathChat</span></a> <a href="https://mathstodon.xyz/tags/MentalMathMonday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MentalMathMonday</span></a> <a href="https://mathstodon.xyz/tags/MathStratChat" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MathStratChat</span></a> <a href="https://mathstodon.xyz/tags/ElemMathChat" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ElemMathChat</span></a> <a href="https://mathstodon.xyz/tags/MathSky" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MathSky</span></a> <a href="https://mathstodon.xyz/tags/MathsToday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MathsToday</span></a> <a href="https://mathstodon.xyz/tags/ClassroomMath" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ClassroomMath</span></a> </p><p>Thanks to Howie Hua!!!</p><p><a href="https://karendcampe.wordpress.com/2025/04/07/mental-math-monday/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">karendcampe.wordpress.com/2025</span><span class="invisible">/04/07/mental-math-monday/</span></a></p>
Karen Campe<p>‪Karen Campe‬ ‪@karencampe.bsky.social‬<br>·<br>now<br>New blog post! "Mental Math Monday" summarizing last week's question and many different calculation strategies.<br><a href="https://mathstodon.xyz/tags/MTBoS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MTBoS</span></a> <a href="https://mathstodon.xyz/tags/iTeachMath" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>iTeachMath</span></a> <a href="https://mathstodon.xyz/tags/T3Learns" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>T3Learns</span></a> <a href="https://mathstodon.xyz/tags/MathChat" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MathChat</span></a> <a href="https://mathstodon.xyz/tags/MentalMathMonday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MentalMathMonday</span></a> <a href="https://mathstodon.xyz/tags/MathStratChat" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MathStratChat</span></a> <a href="https://mathstodon.xyz/tags/ElemMathChat" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ElemMathChat</span></a> <a href="https://mathstodon.xyz/tags/MathSky" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MathSky</span></a> <a href="https://mathstodon.xyz/tags/MathsToday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MathsToday</span></a> <a href="https://mathstodon.xyz/tags/ClassroomMath" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ClassroomMath</span></a> </p><p><a href="https://karendcampe.wordpress.com/2025/04/07/mental-math-monday/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">karendcampe.wordpress.com/2025</span><span class="invisible">/04/07/mental-math-monday/</span></a></p>
The Conversation U.S.<p>Mathematicians use geometric <a href="https://newsie.social/tags/topology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>topology</span></a> to study the shape of the universe and everything in it. A <a href="https://newsie.social/tags/mathematics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mathematics</span></a> professor explains how the field explores every possible space across all dimensions, from simple 2D surfaces to intricate higher-dimensional realms. <br><a href="https://newsie.social/tags/geometry" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>geometry</span></a> <a href="https://newsie.social/tags/mathsky" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mathsky</span></a> <a href="https://buff.ly/41zmuy2" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">buff.ly/41zmuy2</span><span class="invisible"></span></a></p>
Andrew J. Steinmetz<p>Inspired by <a class="mention" href="https://piaille.fr/users/politipet" rel="nofollow noopener noreferrer" target="_blank">@politipet.piaille.fr.ap.brid.gy</a>, I made a pack of scientists/academics from the <a class="hashtag" href="https://bsky.app/search?q=%23fediverse" rel="nofollow noopener noreferrer" target="_blank">#fediverse</a> bridged to <a class="hashtag" href="https://bsky.app/search?q=%23BlueSky" rel="nofollow noopener noreferrer" target="_blank">#BlueSky</a> via <a class="mention" href="https://bsky.brid.gy/ap/did:plc:xbifsywyv5pka5jlknhv5yv3" rel="nofollow noopener noreferrer" target="_blank">@ap.brid.gy</a>. Joining this pack will also bridge your account letting you talk cross platforms! Please suggest others to add! <a class="hashtag" href="https://bsky.app/search?q=%23Science" rel="nofollow noopener noreferrer" target="_blank">#Science</a> <a class="hashtag" href="https://bsky.app/search?q=%23MathSky" rel="nofollow noopener noreferrer" target="_blank">#MathSky</a> <a class="hashtag" href="https://bsky.app/search?q=%23AcademicSky" rel="nofollow noopener noreferrer" target="_blank">#AcademicSky</a> <a class="hashtag" href="https://bsky.app/search?q=%23EduSky" rel="nofollow noopener noreferrer" target="_blank">#EduSky</a> 🧪🍎🧮<br><br>RE: <a href="https://bsky.brid.gy/convert/ap/at://did:plc:xd6msyxiymq4ldfllpeusl6h/app.bsky.graph.starterpack/3lis5z4kx5h23" rel="nofollow noopener noreferrer" target="_blank">https://bsky.brid.gy/convert/ap/at://did:plc:xd6msyxiymq4ldfllpeusl6h/app.bsky.graph.starterpack/3lis5z4kx5h23</a></p>
Stina @ Real Scientists DE<p>Was es auf Twitter aber gab, war eine aktive internationale Math Community. Die waren auch sehr lange auf X, aber nach Nov 24 gab es eine große Migration zu <a href="https://bsky.app/search?q=%23MathSky" rel="nofollow noopener noreferrer" target="_blank">#MathSky</a>. Meine Uni, die <a href="https://bsky.app/search?q=%23OvGU" rel="nofollow noopener noreferrer" target="_blank">#OvGU</a> Magdeburg ist leider noch nicht hier. Das sind ihre Icons. Macht mich traurig.</p>
Dr. Carlotta A. Berry, PhD<p><a href="https://blacktwitter.io/tags/MathMonday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MathMonday</span></a> <a href="https://blacktwitter.io/tags/BlackEduSky" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BlackEduSky</span></a><br><a href="https://blacktwitter.io/tags/BlackMastodon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BlackMastodon</span></a> <a href="https://blacktwitter.io/tags/BlackFediverse" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BlackFediverse</span></a><br><a href="https://blacktwitter.io/tags/STEMSky" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>STEMSky</span></a> <a href="https://blacktwitter.io/tags/BlackSTEM" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BlackSTEM</span></a><br><a href="https://blacktwitter.io/tags/MathSky" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MathSky</span></a> <a href="https://blacktwitter.io/tags/WomenSTEM" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>WomenSTEM</span></a><br><a href="https://blacktwitter.io/tags/NoireSTEMinist" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NoireSTEMinist</span></a><br><a href="https://blacktwitter.io/tags/MySTEMIsForTheStreets" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MySTEMIsForTheStreets</span></a><br>👷🏾‍♀️👩🏾‍🔬👩🏾‍💻🍎👩🏾‍🏫🤖♾</p><p>Moesha is 6 years older than Montez</p><p>In 3 years, Moesha will be double Montez's age in 3 years.</p><p>How old is Montez now?</p>
Dr. Carlotta A. Berry, PhD<p><a href="https://blacktwitter.io/tags/MathMonday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MathMonday</span></a> <a href="https://blacktwitter.io/tags/BlackEduSky" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BlackEduSky</span></a><br><a href="https://blacktwitter.io/tags/BlackMastodon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BlackMastodon</span></a> <a href="https://blacktwitter.io/tags/BlackFediverse" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BlackFediverse</span></a><br><a href="https://blacktwitter.io/tags/STEMSky" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>STEMSky</span></a> <a href="https://blacktwitter.io/tags/BlackSTEM" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BlackSTEM</span></a><br><a href="https://blacktwitter.io/tags/MathSky" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MathSky</span></a> <a href="https://blacktwitter.io/tags/WomenSTEM" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>WomenSTEM</span></a><br><a href="https://blacktwitter.io/tags/NoireSTEMinist" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NoireSTEMinist</span></a><br><a href="https://blacktwitter.io/tags/MySTEMIsForTheStreets" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MySTEMIsForTheStreets</span></a><br>👷🏾‍♀️👩🏾‍🔬👩🏾‍💻🍎👩🏾‍🏫🤖♾</p><p>Moesha is 6 years older than Montez</p><p>In 3 years, Moesha will be double Montez's age in 3 years.</p><p>How old is Moesha now?</p>
Dr. Carlotta A. Berry, PhD<p><a href="https://blacktwitter.io/tags/MathMonday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MathMonday</span></a> <a href="https://blacktwitter.io/tags/BlackEduSky" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BlackEduSky</span></a><br><a href="https://blacktwitter.io/tags/STEMSky" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>STEMSky</span></a> <a href="https://blacktwitter.io/tags/BlackSTEM" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BlackSTEM</span></a><br><a href="https://blacktwitter.io/tags/MathSky" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MathSky</span></a> <a href="https://blacktwitter.io/tags/WomenSTEM" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>WomenSTEM</span></a><br><a href="https://blacktwitter.io/tags/noireSTEMinist" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>noireSTEMinist</span></a><br><a href="https://blacktwitter.io/tags/MySTEMIsForTheStreets" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MySTEMIsForTheStreets</span></a><br> <br>👷🏾‍♀️👩🏾‍🔬👩🏾‍💻🍎👩🏾‍🏫🤖♾<br>Devonte is 2 years older than Dalvin.<br>In 2 years he will be two times Dalvin's CURRENT age.<br>How old will Devonte will be in 2 years?</p>
Dr. Carlotta A. Berry, PhD<p><a href="https://blacktwitter.io/tags/MathMonday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MathMonday</span></a> <a href="https://blacktwitter.io/tags/BlackEduSky" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BlackEduSky</span></a><br><a href="https://blacktwitter.io/tags/STEMSky" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>STEMSky</span></a> <a href="https://blacktwitter.io/tags/BlackSTEM" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BlackSTEM</span></a><br><a href="https://blacktwitter.io/tags/MathSky" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MathSky</span></a> <a href="https://blacktwitter.io/tags/WomenSTEM" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>WomenSTEM</span></a><br><a href="https://blacktwitter.io/tags/noireSTEMinist" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>noireSTEMinist</span></a><br><a href="https://blacktwitter.io/tags/MySTEMIsForTheStreets" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MySTEMIsForTheStreets</span></a><br> <br>👷🏾‍♀️👩🏾‍🔬👩🏾‍💻🍎👩🏾‍🏫🤖♾<br>Devonte is 2 years older than Dalvin.<br>In 2 years he will be two times Dalvin's CURRENT age.<br>How old will Dalvin will be in 2 years?</p>
Dr. Carlotta A. Berry, PhD<p><a href="https://blacktwitter.io/tags/MathMonday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MathMonday</span></a> <a href="https://blacktwitter.io/tags/WomenInSTEM" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>WomenInSTEM</span></a> <a href="https://blacktwitter.io/tags/WomenSTEM" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>WomenSTEM</span></a> <a href="https://blacktwitter.io/tags/BlackSTEM" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BlackSTEM</span></a> <a href="https://blacktwitter.io/tags/BlackSky" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BlackSky</span></a> <a href="https://blacktwitter.io/tags/BlackAcademia" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BlackAcademia</span></a> <a href="https://blacktwitter.io/tags/AcademicSky" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>AcademicSky</span></a> <a href="https://blacktwitter.io/tags/TeacherSky" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>TeacherSky</span></a> <a href="https://blacktwitter.io/tags/MathSky" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MathSky</span></a> <a href="https://blacktwitter.io/tags/STEMSky" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>STEMSky</span></a> <a href="https://blacktwitter.io/tags/STEMMonday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>STEMMonday</span></a></p><p> <a href="https://blacktwitter.io/tags/NoireSTEMinist" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NoireSTEMinist</span></a> <a href="https://blacktwitter.io/tags/MySTEMIsForTheStreets" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MySTEMIsForTheStreets</span></a> </p><p>♾🍎🤖👩🏾‍🏫👩🏾‍💻👩🏾‍🔬👷🏾‍♀️</p><p> </p><p>Solve.</p><p>3×(2^2+4)-12÷6=</p><p>Show your work in the comments</p><p>think PEMDAS, BODMAS, Please Excuse My Dear..</p>
Barbara Fantechi<p>Lothar is preparing a seminar talk on Beauville and Voisin’s 2001 paper “The Chow ring of a K3 surface”. The authors are two mathematicians whose writing style and taste for theorems I separately enjoy, so no surprise it’s been one of my favourites since I first heard of it, and I happily took the occasion to read it again.</p><p>It’s on arxiv and rather short:<br><a href="https://arxiv.org/abs/math/0111146" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">arxiv.org/abs/math/0111146</span><span class="invisible"></span></a></p><p>I’ll try and make a thread on why I like it. <a href="https://mathstodon.xyz/tags/mathsky" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mathsky</span></a></p>