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" target="_blank">#<span>MTBoS</span></a> <a href="https://mathstodon.xyz/tags/iTeachMath" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>iTeachMath</span></a> <a href="https://mathstodon.xyz/tags/T3Learns" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>T3Learns</span></a> <a href="https://mathstodon.xyz/tags/MathChat" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>MathChat</span></a> <a href="https://mathstodon.xyz/tags/MentalMathMonday" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>MentalMathMonday</span></a> <a href="https://mathstodon.xyz/tags/MathStratChat" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>MathStratChat</span></a> <a href="https://mathstodon.xyz/tags/ElemMathChat" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ElemMathChat</span></a> <a href="https://mathstodon.xyz/tags/MathSky" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>MathSky</span></a> <a href="https://mathstodon.xyz/tags/MathsToday" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>MathsToday</span></a> <a href="https://mathstodon.xyz/tags/ClassroomMath" class="mention hashtag" rel="nofollow noopener" 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" 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>
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Karen Campe<p>ICYMI, new blog post on percents!<br><a href="https://karendcampe.wordpress.com/2024/07/26/prime-percents/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">karendcampe.wordpress.com/2024</span><span class="invisible">/07/26/prime-percents/</span></a><br>Plus, stay tuned for the return of the Problem Solving Calendar next week!<br><a href="https://mathstodon.xyz/tags/MTBoS" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>MTBoS</span></a> <a href="https://mathstodon.xyz/tags/iTeachMath" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>iTeachMath</span></a> <a href="https://mathstodon.xyz/tags/ClassroomMath" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ClassroomMath</span></a> <a href="https://mathstodon.xyz/tags/MathEd" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>MathEd</span></a> <a href="https://mathstodon.xyz/tags/MathsEdChat" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>MathsEdChat</span></a> <a href="https://mathstodon.xyz/tags/ElemMathChat" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ElemMathChat</span></a> <a href="https://mathstodon.xyz/tags/ProblemSolving" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ProblemSolving</span></a> <a href="https://mathstodon.xyz/tags/RecreationalMath" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>RecreationalMath</span></a></p>
MrBinfield<p>Which one speaks to you more? What math do you see? What conversations would you start? <a href="https://mastodon.social/tags/fractiontalk" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>fractiontalk</span></a> <a href="https://mastodon.social/tags/howmany" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>howmany</span></a> <a href="https://mastodon.social/tags/ElemMathChat" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ElemMathChat</span></a> <a href="https://mastodon.social/tags/msmathchat" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>msmathchat</span></a> <a href="https://mastodon.social/tags/iteachmath" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>iteachmath</span></a> <a href="https://mastodon.social/tags/mathchat" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>mathchat</span></a></p>
John Golden<p><a href="https://mathstodon.xyz/tags/elemmathchat" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>elemmathchat</span></a> starting in 5 min on the Other Site. <a href="https://twitter.com/search?q=%23elemmathchat&src=typed_query&f=live" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">twitter.com/search?q=%23elemma</span><span class="invisible">thchat&src=typed_query&f=live</span></a> We're talking measurement!</p>
MrBinfield<p>What is this Ss’ sorting rule? <a href="https://mastodon.social/tags/ElemMathChat" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ElemMathChat</span></a> <a href="https://mastodon.social/tags/msmathchat" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>msmathchat</span></a> <a href="https://mastodon.social/tags/iteachmath" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>iteachmath</span></a> <a href="https://mastodon.social/tags/mathchat" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>mathchat</span></a></p>
MrBinfield<p><span class="h-card" translate="no"><a href="https://mathstodon.xyz/@KarenCampe" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>KarenCampe</span></a></span> When I asked the student to tell me more about their thinking, they counted 16 squares, said “4 are yellow, that leaves 12, so 4/12.” Very clearly thinking part:part relationship. Not uncommon at this age. And yes, part:whole and part:part fraction understanding is very important to unpack so we all know what is being spoken of. Not wrong, just looking at a different relationship. <a href="https://mastodon.social/tags/mathschat" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>mathschat</span></a> <a href="https://mastodon.social/tags/elemmathchat" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>elemmathchat</span></a> <a href="https://mastodon.social/tags/msmathchat" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>msmathchat</span></a> <a href="https://mastodon.social/tags/iteachmath" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>iteachmath</span></a></p>
MrBinfield<p>Gr 3 S drew this for fun. I asked “What fraction is yellow?” S responded “ 4/12. What are they noticing? What question would you ask next? Keep in mind not part of a lesson. Just for funsises. <a href="https://mastodon.social/tags/iteachmath" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>iteachmath</span></a> <a href="https://mastodon.social/tags/elemmathchat" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>elemmathchat</span></a> <a href="https://mastodon.social/tags/mathchat" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>mathchat</span></a></p>
MrBinfield<p>How do you see this pattern growing? What will the next term “look like?” What stays the same? What changes? Can you predict a far term? How about the nth term? <a href="https://mastodon.social/tags/elemmathchat" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>elemmathchat</span></a> <a href="https://mastodon.social/tags/mathchat" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>mathchat</span></a> <a href="https://mastodon.social/tags/iteachmath" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>iteachmath</span></a></p>
John Golden<p>With two colleagues did a 3 hour intro to number talks for a K-5 school. <a href="https://bit.ly/NumberTalks-Stocking" rel="nofollow noopener" target="_blank"><span class="invisible">https://</span><span class="">bit.ly/NumberTalks-Stocking</span><span class="invisible"></span></a> <a href="https://mathstodon.xyz/tags/classroommath" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>classroommath</span></a> <a href="https://mathstodon.xyz/tags/elemmathchat" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>elemmathchat</span></a> some teachers were experienced, will be new for some. <a href="https://mathstodon.xyz/tags/mtechat" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>mtechat</span></a></p>
John Golden<p>Good one today from Early Math in Michigan, 4th grade number talk on a dot image & challenge or defend format. <a href="https://www.youtube.com/watch?v=NvF-LogNj_A" rel="nofollow noopener" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">youtube.com/watch?v=NvF-LogNj_</span><span class="invisible">A</span></a> <a href="https://mathstodon.xyz/tags/classroommath" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>classroommath</span></a> <a href="https://mathstodon.xyz/tags/elemmathchat" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>elemmathchat</span></a></p>
Karen Campe<p>So many people to thank for inspiration on this post:<br> @BerkeleyEverett<br> @Simon_Gregg<br> @MathsCirclesOz<br> <span class="h-card"><a href="https://mathstodon.xyz/@Mathforlove" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>Mathforlove</span></a></span><br> @heidi_schnabel<br> @ASKusmer<br> @howie_hua<br> @gfletchy<br> @MrLeiss<br> <span class="h-card"><a href="https://mathstodon.xyz/@TheErickLee" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>TheErickLee</span></a></span><br> @boss_maths<br>and <span class="h-card"><a href="https://mathstodon.xyz/@rrogers" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>rrogers</span></a></span> for the helpful comment this morning!</p><p><a href="https://karendcampe.wordpress.com/2023/07/30/useful-units/" rel="nofollow noopener" target="_blank"><span class="invisible">https://</span><span class="ellipsis">karendcampe.wordpress.com/2023</span><span class="invisible">/07/30/useful-units/</span></a></p><p><a href="https://mathstodon.xyz/tags/ClassroomMath" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ClassroomMath</span></a> <a href="https://mathstodon.xyz/tags/MathEd" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>MathEd</span></a> <br><a href="https://mathstodon.xyz/tags/MTBoS" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>MTBoS</span></a> <a href="https://mathstodon.xyz/tags/iTeachMath" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>iTeachMath</span></a> <a href="https://mathstodon.xyz/tags/UnitChat" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>UnitChat</span></a> <a href="https://mathstodon.xyz/tags/ElemMathChat" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ElemMathChat</span></a> <a href="https://mathstodon.xyz/tags/trigonometry" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>trigonometry</span></a> <a href="https://mathstodon.xyz/tags/Units" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Units</span></a></p>
Justin Lanier<p>Today is the last day for elementary, middle, and high school teachers to sign up for "21st century mathematics", a guided learning experience I'm running online in July. Details here!</p><p><a href="https://justinlanier.org/21st-century-mathematics/" rel="nofollow noopener" target="_blank"><span class="invisible">https://</span><span class="ellipsis">justinlanier.org/21st-century-</span><span class="invisible">mathematics/</span></a></p><p><a href="https://mathstodon.xyz/tags/mathchat" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>mathchat</span></a> <a href="https://mathstodon.xyz/tags/mathschat" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>mathschat</span></a> <a href="https://mathstodon.xyz/tags/mtbos" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>mtbos</span></a> <a href="https://mathstodon.xyz/tags/iteachmath" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>iteachmath</span></a> <a href="https://mathstodon.xyz/tags/elemmathchat" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>elemmathchat</span></a> <a href="https://mathstodon.xyz/tags/msmathchat" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>msmathchat</span></a></p>
Karen Campe<p><span class="h-card"><a href="https://vmst.io/@AnnEliseRecord" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>AnnEliseRecord</span></a></span> <span class="h-card"><a href="https://nerdculture.de/@ilanahorn" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>ilanahorn</span></a></span> <br>Hi Ann Elise!<br>I've been using <a href="https://mathstodon.xyz/tags/MTBoS" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>MTBoS</span></a> & <a href="https://mathstodon.xyz/tags/iTeachMath" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>iTeachMath</span></a> but those aren't elementary specific. Maybe use <a href="https://mathstodon.xyz/tags/ElemMathChat" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ElemMathChat</span></a> like on Tw?</p><p>By the way, <span class="h-card"><a href="https://mathstodon.xyz/@davidwees" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>davidwees</span></a></span> organized a chat for MTBoS & <a href="https://mathstodon.xyz/tags/MathEd" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>MathEd</span></a> this past saturday. </p><p>Follow him & follow <span class="h-card"><a href="https://a.gup.pe/u/mtbos" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>mtbos</span></a></span> to join the next one.</p>
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