Jean-Baptiste Etienne
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jeanbaptisteet4.bsky.social
Jean-Baptiste Etienne
@jeanbaptisteet4.bsky.social
250 followers 600 following 52 posts
Professeur de Mathématiques. #geogebra ( https://www.geogebra.org/u/jotab) #mathart

Mastodon : @[email protected]
Posts Replies Media Videos
Reposted by Jean-Baptiste Etienne
victormat-es.bsky.social
#fotografíamatemática
#mathpicture
November 16, 2025 at 1:36 PM
Reposted by Jean-Baptiste Etienne
alegallardo28.bsky.social
El ángulo interior de un hexágono regular es 120º.
Se puede ver como la suma de 4 ángulos inscritos de 30º, que son mitades de 4 ángulos centrales de 60º.
#iteachmath #geometry #visualmath #geogebra
www.geogebra.org/m/fyjhpkfa
November 16, 2025 at 8:32 AM
Reposted by Jean-Baptiste Etienne
johngolden.bsky.social
#mathart spiral play in #GeoGebra with isosceles trapezoids www.tumblr.com/mathhombre/8...
Post by @mathhombre · 9 images
💬 0  🔁 1  ❤️ 0 · Trapezoid Spiral · Ghee Beom Kim posted a couple cool trapezoid spirals that got me interested. Pretty fun! But my favorite is, of course, the pentagonal. Play in GeoGebra!
www.tumblr.com
November 14, 2025 at 5:03 AM
Reposted by Jean-Baptiste Etienne
johngolden.bsky.social
For #mathober day 27:bidiminished I tried for a Parabidiminished Rhombicosidodecahedron in Polypad. Will not fold :-( polypad.org/tjsbVJj9afVOVQ Diminished means substituting a regular polygon fo a feature like a cupola.
Parabidiminished Rhombicosidod – Polypad – Polypad
Unleash your creativity with the world’s best virtual manipulatives!
polypad.org
October 28, 2025 at 1:34 AM
Reposted by Jean-Baptiste Etienne
graveolens.bsky.social
October 27, 2025 at 1:13 PM
Reposted by Jean-Baptiste Etienne
maitematiques.bsky.social
@alegallardo28.bsky.social hace “cosas” chulérrimas.🙌🙌
October 25, 2025 at 11:25 AM
Reposted by Jean-Baptiste Etienne
rafalosada.bsky.social
www.geogebra.org/m/vuuufnr8
Teselaciones regulares
En este libro GeoGebra se exponen procedimientos para crear teselaciones regulares a partir de un azulejo principal, consumiendo un mínimo de recurso…
www.geogebra.org
October 25, 2025 at 10:47 AM
Reposted by Jean-Baptiste Etienne
johngolden.bsky.social
Beautiful #tessellation #geogebra book from Rafael Losada Liste www.geogebra.org/m/vuuufnr8
Teselaciones regulares
En este libro GeoGebra se exponen procedimientos para crear teselaciones regulares a partir de un azulejo principal, consumiendo un mínimo de recurso…
www.geogebra.org
October 24, 2025 at 12:26 AM
Reposted by Jean-Baptiste Etienne
blogenigmath.bsky.social
Snub dodecahedron
Polyhedron with ninety two faces: twelve regular pentagons and eighty equilateral triangles.
#enigmath #math #polyhedron
Snub dodecahedron
Polyhedron with ninety two faces: twelve regular pentagons and eighty equilateral triangles. It has one hundred fifty edges and sixty vertices. It is a Archimedean solid as it is a convex uniform p…
blogenigmath.wordpress.com
October 18, 2025 at 7:37 PM
Reposted by Jean-Baptiste Etienne
rafalosada.bsky.social
Reloj de sol (sobre analema) interactivo

www.geogebra.org/m/dbp8pwcb
Reloj solar
Reloj solar, analema
www.geogebra.org
October 18, 2025 at 5:27 PM
Reposted by Jean-Baptiste Etienne
acgeogebra.bsky.social
Demà participarem a la #VIJornadaGeoGebra i #XVJornadesdEducacióMatemàtica de la @SEMCV i @IGCValenciana amb el següent taller de #GeoGebra.
Ens trobem a la jornada! 😀
October 17, 2025 at 4:14 AM
Reposted by Jean-Baptiste Etienne
olonguet.bsky.social
Du graphe eulerien des arêtes de l’octaedre au solide.
October 12, 2025 at 2:43 PM
Reposted by Jean-Baptiste Etienne
johngolden.bsky.social
#Mathober Day 13: sporadic group. It's a monster #mathcomic www.tumblr.com/talkingnumbe...
Post by @talkingnumbers · 3 images
💬 0  🔁 0  ❤️ 0 · Monster Group Such a crazy thing. M, the monster group, is the largest of the 26 sporadic groups. The sporadic groups are all the finite simple groups not members of the four infi…
www.tumblr.com
October 13, 2025 at 7:04 PM
Reposted by Jean-Baptiste Etienne
fjarraud.bsky.social
Les enseignants sont les plus intéressés à une réforme de leur métier, à commencer par la paye. Mais ce que la Dgesco souhaite c'est la fin de leur autonomie blogs.mediapart.fr/francois-jar...
Faut-il changer le métier enseignant ?
Que doit devenir le métier enseignant ? La conférence internationale du Cnesco interroge les experts. La pression pour promouvoir le modèle du nouveau management public est forte alors que l'Ecole es…
blogs.mediapart.fr
October 12, 2025 at 10:42 AM
Reposted by Jean-Baptiste Etienne
noneucldreamer.bsky.social
Shifting Colors in the Fish Tiling

#creativecoding #mathart
October 6, 2024 at 2:55 PM
Reposted by Jean-Baptiste Etienne
helsig.bsky.social
Parquet deformation based on hexagons. By gradually changing the size of triangles within each hexagonal tile a fading geometric pattern can be made. Sections made in Excel; colored and assembled in Krita.

#MathArt
On the left is a hexagonal geometric pattern that gradually changes configuration from left to right. On the right is a tile diagram.
September 29, 2025 at 8:41 AM
Reposted by Jean-Baptiste Etienne
lbarqueira.bsky.social
Fractal generated by an Iterated Function System using Möbius transformations. 20 million points
#generativeart #mathart #Mathematics #p5js #math #fractal
April 26, 2025 at 10:18 PM
Reposted by Jean-Baptiste Etienne
maxxxdoubt.bsky.social
– Max's Mandalas –
#mandala #kaleidoscope #generativeart #imagemagick #kaleidoscopic #steamed #digitalart #generative #kaleidosaturday

Hardly Shafted
August 30, 2025 at 3:15 AM
Reposted by Jean-Baptiste Etienne
jylabouche.bsky.social
🚨Disponible !
➡️ amazon.fr/dp/B0FM7BJ1F3
🖊️J'en fais une présentation détaillée sur urlr.me/bQfPj4
#algorithmique #cycle3 #teamPE #collège #programmation #code #coding
August 19, 2025 at 1:31 PM
Reposted by Jean-Baptiste Etienne
afreeparticle.com
Another Reddit find: jello cube!

Seems like it would be fairly straightforward to show the lattice points and internal springs, and add some energy bars for #iTeachPhysics
August 14, 2025 at 9:37 PM
Reposted by Jean-Baptiste Etienne
johngolden.bsky.social
Happy 50th birthday, fractals! daily.jstor.org/fifty-years-...
Fifty Years of Fractals - JSTOR Daily
A half century ago ago, Benoit Mandelbrot coined the word "fractal" and pioneered a new type of geometry.
daily.jstor.org
August 17, 2025 at 11:36 PM
Reposted by Jean-Baptiste Etienne
johngolden.bsky.social
Nice implementation of the Einstein #tessellation by Rafael Losada Liste www.geogebra.org/m/eyjsb7vn in #geogebra
Teselados aperiódicos
Teselados aperiódicos, monotesela
www.geogebra.org
August 13, 2025 at 2:15 PM
Reposted by Jean-Baptiste Etienne
rafalosada.bsky.social
Exactamente. De hecho, ese mismo procedimiento hace que se pueda teselar el plano con cualquier triángulo. Incluso con cualquier cuadrilatero (convexo o no).

geogebra.es/gauss/materi...

geogebra.es/gauss/materi...
Cualquier triángulo tesela
geogebra.es
August 13, 2025 at 10:11 AM
Reposted by Jean-Baptiste Etienne
alegallardo28.bsky.social
Esta vidriera estaba en la iglesia de San Pedro, Lovaina.
Tiene un patrón octogonal muy interesante.
Con #geogebra #mathart #mathsky #miradamatemática
www.geogebra.org/m/css3dxqx
August 12, 2025 at 11:26 AM
Reposted by Jean-Baptiste Etienne
lecartographe.bsky.social
La piscine d'eau de Mer de Saint-Quay-Portrieux, Côtes-d'Armor 🇫🇷, cette merveille !
August 8, 2025 at 1:39 PM