Geometiles
@geometiles.bsky.social
Math related thoughts, often expressed through Geometiles. www.geometiles.com
This is an entry for the 3rd day of #mathober2025 (polyhedron) and also the 1st day (link). It is a variation on a rhombicuboctahedron with a projection of the Borromean Rings. #mathober #mathsky
October 4, 2025 at 12:33 AM
This is an entry for the 3rd day of #mathober2025 (polyhedron) and also the 1st day (link). It is a variation on a rhombicuboctahedron with a projection of the Borromean Rings. #mathober #mathsky
September 13, 2025 at 3:25 PM
This jumbo size dandelion is called a salsify, to the best of my knowledge. The tiny broom is a single seed. The “heart” has Fibonacci spirals. Could the spherical looking flower be a spherical Fibonacci mapping? Seen in North Rim, Grand Canyon NP. #mathsky #Fibonacci
July 3, 2025 at 9:42 PM
This jumbo size dandelion is called a salsify, to the best of my knowledge. The tiny broom is a single seed. The “heart” has Fibonacci spirals. Could the spherical looking flower be a spherical Fibonacci mapping? Seen in North Rim, Grand Canyon NP. #mathsky #Fibonacci
May 6, 2025 at 2:56 AM
April 20, 2025 at 2:46 PM
April 1, 2025 at 1:53 PM
It's #NationalQuiltingMonth ! What better time to incorporate math teaching and quilting.
Read our new blog:https://geometiles.com/quilting-blocks-and-geometiles-old-meets-new #mathsky #edusky #mathart
Read our new blog:https://geometiles.com/quilting-blocks-and-geometiles-old-meets-new #mathsky #edusky #mathart
March 28, 2025 at 8:56 PM
It's #NationalQuiltingMonth ! What better time to incorporate math teaching and quilting.
Read our new blog:https://geometiles.com/quilting-blocks-and-geometiles-old-meets-new #mathsky #edusky #mathart
Read our new blog:https://geometiles.com/quilting-blocks-and-geometiles-old-meets-new #mathsky #edusky #mathart
Day 22 of #mathartmarch inspired me to make this section of a torus with a #hexagon shaped cross section. #mathsky #mathart
March 23, 2025 at 5:37 AM
Day 22 of #mathartmarch inspired me to make this section of a torus with a #hexagon shaped cross section. #mathsky #mathart
Day 17 of #mathartmarch entry: symmetry. This pattern is called “Night Sky” and was designed by Julie Herman of Jaybird Quilts. #mathsky #mathart
March 17, 2025 at 7:09 PM
Day 17 of #mathartmarch entry: symmetry. This pattern is called “Night Sky” and was designed by Julie Herman of Jaybird Quilts. #mathsky #mathart
Celebrating #nationalquiltingmonth with two classic quilting blocks: the Sawtooth Star and Dutchman’s Puzzle. Geometiles allow you to create these patterns quickly so that you can focus on their geometry even if you don’t know how to sew. See Geometiles.com/quilts for examples. #mathsky #edusky
March 17, 2025 at 12:24 AM
Celebrating #nationalquiltingmonth with two classic quilting blocks: the Sawtooth Star and Dutchman’s Puzzle. Geometiles allow you to create these patterns quickly so that you can focus on their geometry even if you don’t know how to sew. See Geometiles.com/quilts for examples. #mathsky #edusky
Celebrating this year’s Pi(e) Day with this fluted number! It comes with its own pie stand, made for the occasion. Watch video to see how two flat surfaces come together to make the pie— or should I say PIElyhedron?? Mobies make the thin pedestal of the pie stand possible. #mathsky #piday2025
March 13, 2025 at 4:32 AM
Celebrating this year’s Pi(e) Day with this fluted number! It comes with its own pie stand, made for the occasion. Watch video to see how two flat surfaces come together to make the pie— or should I say PIElyhedron?? Mobies make the thin pedestal of the pie stand possible. #mathsky #piday2025
Wait for it… this 7 yr old is discovering a new way to play with Geometiles. He’s treating the chain of rectangles as a multi-hinge system, and he finds it “satisfying” to experience the system unfold from a triangle to various other shapes under the effect of gravity. #edusky #mathsky #iteachmath
March 3, 2025 at 9:14 PM
Wait for it… this 7 yr old is discovering a new way to play with Geometiles. He’s treating the chain of rectangles as a multi-hinge system, and he finds it “satisfying” to experience the system unfold from a triangle to various other shapes under the effect of gravity. #edusky #mathsky #iteachmath
This #BlackHistoryMonth I’ve been looking at the origins of African American crafts. The pattern in the first picture is inspired by Kente cloth. The cube design is based on the zigzag pattern often seen in African art. #mathsky #mathart #mathematicalart
February 18, 2025 at 4:54 AM
This #BlackHistoryMonth I’ve been looking at the origins of African American crafts. The pattern in the first picture is inspired by Kente cloth. The cube design is based on the zigzag pattern often seen in African art. #mathsky #mathart #mathematicalart
Mirrored triacontahedron (30-faces) at the @byltbasics.bsky.social store at the local mall. This solid was discovered by Johannes Kepler. It is dual to the icosidodecahedron. #mathsky #mathart
February 10, 2025 at 4:20 PM
Mirrored triacontahedron (30-faces) at the @byltbasics.bsky.social store at the local mall. This solid was discovered by Johannes Kepler. It is dual to the icosidodecahedron. #mathsky #mathart
Want a perfect Valentine’s Day gift for the person in your life who likes math and/or building things and/or hearts? Check these out. Geometiles.com/product-cate... .$27 including shipping in US.♥️🤍💙 #mathsky #edusky #iteachmath #valentinesday2025 #valentinesgift
February 3, 2025 at 7:01 PM
Want a perfect Valentine’s Day gift for the person in your life who likes math and/or building things and/or hearts? Check these out. Geometiles.com/product-cate... .$27 including shipping in US.♥️🤍💙 #mathsky #edusky #iteachmath #valentinesday2025 #valentinesgift
January 30, 2025 at 4:41 PM
The last day of the Joint Math Meetings is always bittersweet because that’s when I get to interact with really young mathematicians, but not nearly for as long as I’d like. 9 yr old boy with an elegant structure he designed on his own; girl discovering the #hattile. #jmm2025 #mathsky #edusky
January 17, 2025 at 12:46 AM
Kudos to David Weed, of UC Riverside, for winning the coffee bean contest at #JMM2025 ! One of the yellow tetrahedra had 93 coffee beans, and his guess for the number of beans in the green one was 205, just 1 over the correct number. V(green)=2 V(yellow) by Cavalieri’s principle.
January 10, 2025 at 9:28 PM
Kudos to David Weed, of UC Riverside, for winning the coffee bean contest at #JMM2025 ! One of the yellow tetrahedra had 93 coffee beans, and his guess for the number of beans in the green one was 205, just 1 over the correct number. V(green)=2 V(yellow) by Cavalieri’s principle.
Still catching my breath after the opening reception at the #JMM2025. This star summarizes my experience: raucous geeky fun. Thank you to the person who made this— you’re the first person to build this shape.
January 9, 2025 at 5:55 AM
Still catching my breath after the opening reception at the #JMM2025. This star summarizes my experience: raucous geeky fun. Thank you to the person who made this— you’re the first person to build this shape.
If you're planning to attend
#JMM2025 next week, stop by Booth 331 for a view of the Space Needle and to participate in our Seattle themed estimation challenge. We'll be next to the Math Art Exhibit, where you can see my piece "Full Circles". #mathart #mathematicalart #mathsky
#JMM2025 next week, stop by Booth 331 for a view of the Space Needle and to participate in our Seattle themed estimation challenge. We'll be next to the Math Art Exhibit, where you can see my piece "Full Circles". #mathart #mathematicalart #mathsky
January 3, 2025 at 11:58 PM
If you're planning to attend
#JMM2025 next week, stop by Booth 331 for a view of the Space Needle and to participate in our Seattle themed estimation challenge. We'll be next to the Math Art Exhibit, where you can see my piece "Full Circles". #mathart #mathematicalart #mathsky
#JMM2025 next week, stop by Booth 331 for a view of the Space Needle and to participate in our Seattle themed estimation challenge. We'll be next to the Math Art Exhibit, where you can see my piece "Full Circles". #mathart #mathematicalart #mathsky
Just in time for #chanukah2024 , here is an easy to make Geometiles Dreidel. It’s made of eight 30-60-90 triangles and four right isosceles triangles. You need to improvise your own handle for spinning it — I just glued together 4 coffee stirrers. #mathsky #iteachmath #iteachphysics
December 23, 2024 at 12:58 AM
Just in time for #chanukah2024 , here is an easy to make Geometiles Dreidel. It’s made of eight 30-60-90 triangles and four right isosceles triangles. You need to improvise your own handle for spinning it — I just glued together 4 coffee stirrers. #mathsky #iteachmath #iteachphysics