Husband/father of 3, HS math teacher / Desmos Fellow, SF Bay Area, old school #MTBoS member, working to create math classes that build agency and ownership for marginalized students. Always drinking #tea. #BuildingThinkingClassrooms. #ITeachMath #EduSkyhttps://bsky.app/profile/dwekselgreene.bsky.socialhttps://bsky.app/profile/dwekselgreene.bsky.social/post/3mv2pi4lz6k2kFinally got a few sets of @hpicciotto.bsky.social ‘s Lab Gear and introduced it in #MathsToday. You can do a lot more than with standard algebra tiles. Looking forward to trying the various explorations and activities to see what emerges. Does anyone else here use these? #iteachmath #mtbos09 Sep 2026 04:33 +0000at://did:plc:hkkafysqv7ec52dodnp654ic/app.bsky.feed.post/3mv2pi4lz6k2khttps://bsky.app/profile/dwekselgreene.bsky.social/post/3muq3236t3s2qIn algebra 2, we've been working on analyzing the term/factor structure of sub-expressions (using tree diagrams and parsing marks). Students are doing well! On Tuesday, we'll layer in the distributive property and how it supports transformation in either direction. #mtbos #iteachmath04 Sep 2026 23:01 +0000at://did:plc:hkkafysqv7ec52dodnp654ic/app.bsky.feed.post/3muq3236t3s2qhttps://bsky.app/profile/dwekselgreene.bsky.social/post/3mtzmiixtsc2xI’m designing a workshop series (3 1-hour sessions) for 11th & 12th graders to show how to use @desmos.com for exploring, problem solving, and creating, not just graphing. I have ideas for what to prioritize but I’d love to hear what others would focus on in or do in that time. #mtbos #iteachmath27 Aug 2026 00:42 +0000at://did:plc:hkkafysqv7ec52dodnp654ic/app.bsky.feed.post/3mtzmiixtsc2xhttps://bsky.app/profile/dwekselgreene.bsky.social/post/3mjbrvlomys2nI just listened to this. What a fantastic set, and excellent sound quality. Just learned about this collection and looking forward to digging in. [contains quote post or other embedded content]12 Apr 2026 07:03 +0000at://did:plc:hkkafysqv7ec52dodnp654ic/app.bsky.feed.post/3mjbrvlomys2nhttps://bsky.app/profile/dwekselgreene.bsky.social/post/3meu4qt42ys23“Yet, what is any ocean but a multitude of drops?” David Mitchell, Cloud Atlas14 Feb 2026 22:59 +0000at://did:plc:hkkafysqv7ec52dodnp654ic/app.bsky.feed.post/3meu4qt42ys23https://bsky.app/profile/dwekselgreene.bsky.social/post/3mes56mhiws2x🫏😋👜 [contains quote post or other embedded content]14 Feb 2026 04:02 +0000at://did:plc:hkkafysqv7ec52dodnp654ic/app.bsky.feed.post/3mes56mhiws2xhttps://bsky.app/profile/dwekselgreene.bsky.social/post/3maof7jhfck2nMy 6 yo is always busy with projects. Currently, she is designing party hats for her dolls. I told her it was really impressive and she said “what? I’m just cutting out triangles, rolling them up, and taping them.” I asked her how she knew to do that and she said “I just saw it in my head.” #tmwyk23 Dec 2025 18:34 +0000at://did:plc:hkkafysqv7ec52dodnp654ic/app.bsky.feed.post/3maof7jhfck2nhttps://bsky.app/profile/dwekselgreene.bsky.social/post/3m7qompdnq22zI made these problems years ago, and have been recycling them since. Does anyone know of a place where more like these could be found? It's time consuming to make good ones. #iteachmath #mtbos https://drive.google.com/file/d/1qfM3ae4bAys-XHq1j12Rqlk8a1k4ym_w/view?usp=sharing11 Dec 2025 23:02 +0000at://did:plc:hkkafysqv7ec52dodnp654ic/app.bsky.feed.post/3m7qompdnq22zhttps://bsky.app/profile/dwekselgreene.bsky.social/post/3luq7mbgem224I’m staring at this chair in a waiting room. The more I look at it, the more it’s making me feel agitated. Is it just me? #mtbos #iteachmath24 Jul 2025 18:57 +0000at://did:plc:hkkafysqv7ec52dodnp654ic/app.bsky.feed.post/3luq7mbgem224https://bsky.app/profile/dwekselgreene.bsky.social/post/3lu4fkszw3c2hI was baking cupcakes with the 6 yo and (of course) did fraction work with her. I got out the 1, 1/2, and 1/4 cup measures and asked her questions about them, had her read the symbols, etc. I told her we needed 3/4 cup of sugar and asked her how we should do it.16 Jul 2025 21:50 +0000at://did:plc:hkkafysqv7ec52dodnp654ic/app.bsky.feed.post/3lu4fkszw3c2hhttps://bsky.app/profile/dwekselgreene.bsky.social/post/3ltuiat66ls2qPlaying Mastermind with my 6 year old inspired me to make this in #Desmos. I discovered I'm a lot worse at guessing than I thought! #MTBoS #iteachmath https://classroom.amplify.com/activity/6873502673785e2ffd9fc505?checkAmplifyLogin=true13 Jul 2025 18:17 +0000at://did:plc:hkkafysqv7ec52dodnp654ic/app.bsky.feed.post/3ltuiat66ls2qhttps://bsky.app/profile/dwekselgreene.bsky.social/post/3lss4ljj4m22sTax Collector in #AmplifyClassroom #desmos #iteachmath #mtbos (https://classroom.amplify.com/activity/68618dda904284e8fd2a716b?utm_campaign=share&utm_content=activity&fbclid=IwY2xjawLO0TZleHRuA2FlbQIxMABicmlkETEyYVE0TnVvZE1qUU5kT284AR668HNj7ltbfg7fqLLDPIufag_SZkgpmpcLBAq9m7A_CewXopf5iz1gGJsGYw_aem_A9UlG4lsjlj2vtV44EvqPA)30 Jun 2025 02:17 +0000at://did:plc:hkkafysqv7ec52dodnp654ic/app.bsky.feed.post/3lss4ljj4m22shttps://bsky.app/profile/dwekselgreene.bsky.social/post/3lo3766ger224Launch for tomorrow's polynomial division lesson. #iteachmath #MTBoS01 May 2025 01:52 +0000at://did:plc:hkkafysqv7ec52dodnp654ic/app.bsky.feed.post/3lo3766ger224https://bsky.app/profile/dwekselgreene.bsky.social/post/3lhxqzgcljc2jMy new favorite method for practicing #French: I read Percy Jackson in French and translate out loud to English in real time as my 10 yo follows along in the English text and corrects me as I go. I mean the first chapter is about vaporizing his math teacher by accident so we’re off to a good start!12 Feb 2025 08:29 +0000at://did:plc:hkkafysqv7ec52dodnp654ic/app.bsky.feed.post/3lhxqzgcljc2jhttps://bsky.app/profile/dwekselgreene.bsky.social/post/3lcvr6tx2r226I wanted to share a few student work examples of the Math Language Routine #StrongerAndClearer that show how much of an improvement there can be without the teacher giving any feedback, from both language learners and English fluent students. bit.ly/4f92vJN #UDL #iTeachMath #MTBoS #edusky https://docs.google.com/presentation/d/1hSnZyl-wY9FoNihHikU8ApHlLya5QER5lf_xr2gIZ-g/edit?usp=sharing09 Dec 2024 22:21 +0000at://did:plc:hkkafysqv7ec52dodnp654ic/app.bsky.feed.post/3lcvr6tx2r226https://bsky.app/profile/dwekselgreene.bsky.social/post/3lcvjsef3622zI handed out a copy of hand-written worked solutions for a task. Student quietly to a friend: "what kind of name is 'Exemplar'?!" 😂 #iteachmath #mtbos09 Dec 2024 20:09 +0000at://did:plc:hkkafysqv7ec52dodnp654ic/app.bsky.feed.post/3lcvjsef3622zhttps://bsky.app/profile/dwekselgreene.bsky.social/post/3lcrbrmjnk222I’m so going to use this for Shuffle Quizzes. #complexinstruction ♾️ https://apps.apple.com/us/app/chwazi-finger-chooser/id689674978 https://apps.apple.com/us/app/chwazi-finger-chooser/id689674978#complexinstruction08 Dec 2024 03:35 +0000at://did:plc:hkkafysqv7ec52dodnp654ic/app.bsky.feed.post/3lcrbrmjnk222https://bsky.app/profile/dwekselgreene.bsky.social/post/3lcey3to2hk2qIn #mathstoday we reviewed Pythagorean Theorem. I used a #desmos activity that worked pretty well. I started with two proof without words puzzles adapted from @mathtechcoach.bsky.social as a way to ground it visually and built from there. https://teacher.desmos.com/activitybuilder/custom/674e3737e697967fc9b11caa #iTeachMath #MTBoS03 Dec 2024 06:09 +0000at://did:plc:hkkafysqv7ec52dodnp654ic/app.bsky.feed.post/3lcey3to2hk2q