Tim Brzezinski

Vertical angles theorem - Graspable Mat whiteboard link - see description in youtube.com/shorts/002P5... #MTBoS #ITeachMath #mathteacher #edusky

Super simple, real-life example that shows how 2^0 =1. youtube.com/shorts/uFgnk... #mathteacher #edusky

Quick scaffolded support for students who need it: Graspable Math whiteboard - here with finding distance in the coordinate plane. Link in description here: youtube.com/shorts/TN-8n... #MTBoS #ITeachMath #edusky #mathteacher

Graspable Math whiteboard helps students with procedural fluency big time — without doing the thinking for them. Link in description here: youtube.com/shorts/SrI24... #MTBoS #ITeachMath #mathteacher #edusky

Math Teachers: Graspable Math whiteboard is a powerful tool to help students work with arithmetic & algebraic expressions. Shown here with rationalizing denominators. Link in description here: youtube.com/shorts/YMvlN... #MTBoS #ITeachMath #edusky #mathteacher

Using simple 5th-grade logic to explain why e^(ln(x)) = x. youtube.com/shorts/xBKn5... #mathematics #edusky #mathteacher #MTBoS #ITeachMath

Isosceles triangle surprise 👀 youtube.com/shorts/9KIQ0... #mathteacher #edusky

Making sense of distributing a negative coefficient: youtube.com/shorts/-0_ud... #MTBoS #ITeachMath #mathteacher #EduSky

Circle, diameter, tangent, secant, & chord surprise 👀 youtube.com/shorts/FDS-c... & www.geogebra.org/m/a4W7Szmx #MTBoS #ITeachMath #mathteacher #edusky

Cylinder surface area. If seeing is believing 👀 Links: www.geogebra.org/m/rCxXxFhE & an Open Middle exercise: www.geogebra.org/m/wkcgyxex & youtube.com/shorts/hX5Oe... #MTBoS #ITeachMath #mathteacher #edusky

Making sense with adding expressions in #algebra. Shown here in Graspable Math’s whiteboard: activities.graspablemath.com/whiteboards/... & youtube.com/shorts/3S3P6... #mathteacher #edusky

No tech. Just paper. Pure simplicity. Here, an effective means for students to explore any polygon’s exterior angles. #mathematics #geometry #mathteacher #edusky

#math #teachers : Graspable Math’s whiteboard is an awesome, slick, easy-to-use interface to help support procedural fluency: activities.graspablemath.com/whiteboards/... & youtube.com/shorts/TwegF... #MTBoS #ITeachMath #mathteacher #edusky

Using tech to explore a special right triangle in a thinking classroom: geogebra.org/m/uvuxbqc6 & youtube.com/shorts/IQLC7... @btcthinks.bsky.social @peterliljedahl.bsky.social #MTBoS #iteachmath #mathteacher #edusky

Making sense of radians. And π 🥧 youtube.com/shorts/8_9BW... & resources for teachers and students: drive.google.com/file/d/1YJJB...
#MTBoS #ITeachMath #mathteacher #edusky

Circle to triangle: What are the angles? 🤔 youtube.com/shorts/NUqQu... #math #maths #geometry #STEM #STEAM #mathfun #mathteacher #edusky

Right triangle angle trisector surprise! 👀 youtube.com/shorts/QxKNx... #MTBoS #ITeachMath #mathteacher #edusky

Thank you! 😊

Reflecting across 2 parallel lines is equivalent to a single translation by vector. Quick student exploration: www.geogebra.org/m/ta5npwq5 & youtube.com/shorts/nB35Y... @geogebra.org #MTBoS #ITeachMath #mathteacher #edusky

Working with distance in the coordinate plane conceptually using an @openmiddle.com theme: youtube.com/shorts/2fSHm... Resource link: www.geogebra.org/m/darjhqrc
@robertkaplinsky.com #MTBoS #ITeachMath #mathteacher #edusky

Composing 2 line reflections about 2 intersecting lines is equivalent to a rotation of double the angle between those 2 lines about their point of intersection: youtube.com/shorts/JmoFo... & www.geogebra.org/m/schvdg2p #MTBoS #ITeachMath #edusky #mathteacher

Exploring line reflections youtube.com/shorts/-15uU... & www.geogebra.org/m/wzkbnnzg

Math Links for Week Ending Jan 9th, 2025 Featured Links I have been a Desmos Fellow (now Amplify Fellow) since 2018 and it has given me resources, insight and inspiration. And don't...

[New Post] Ontario Math Links - My favourite #math related links from this week:

ontariomath.blogspot.com/2026/01/math...

Links and help from @karencampe.bsky.social @tbrzezinski.bsky.social @amplifyeducation.bsky.social @ahestenes.bsky.social @priy45hah.bsky.social
#MathChat #MTBoS #iTeachMath

Triangle with 3 right angles: youtube.com/shorts/prOXv... & www.geogebra.org/m/qfb6cvfv #mathteacher #edusky

Some polygon angle explorations for a thinking classroom: www.geogebra.org/m/qsxbwtct & youtube.com/shorts/iV_jp... @peterliljedahl.bsky.social @btcthinks.bsky.social @geogebra.org #MTBoS #ITeachMath #mathteacher #EduSky

Circle to right triangle: by peeling. youtube.com/shorts/la3iU... #MTBoS #ITeachMath #mathteacher #EduSky

Exploring rotations in the coordinate plane: drive.google.com/file/d/1maRA... & youtube.com/shorts/g31aC... @desmos.com #MTBoS #ITeachMath #edusky #mathteacher

Exploring translation by vector: youtube.com/shorts/Q9zFn... & www.geogebra.org/m/axnnavdz #edusky #mathteacher

Dine and Discuss is up and running in January next year! JAN 14, 5:30p - 8:00p, at EastConn in Hampton, CT. We hope to see you there! More info: atomicmath.org.

We are looking forward to learning about mathematics through storytelling from featured speaker Jamil Siddiqui at #ATMNE25. Check out all of the fantastic sessions and register at atmim.net/event-5937758 @atmim.bsky.social