iiinova — where your digital self keeps evolving

Jessie Oehrlein @numberdance.bsky.social · 02/10/2026

I was at Alumni Weekend at my undergrad last weekend, and I am always amazed that this tiny, still-young, engineering-only school has managed to produce at least three statistics faculty. So we got a photo of all of us! Me ('16), Jerzy Wieczorek ('06), and Zach del Rosario ('14)

A woman and two men standing together in a crowded library

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Jessie Oehrlein @numberdance.bsky.social · 11/09/2026

not as nice as cats but here are some turkeys

Six wild turkeys in a yard, at the edge of some brush and woods

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Jessie Oehrlein @numberdance.bsky.social · 08/09/2026

The art in the thread to this point has been art I think about often for unquestionably good reasons. But these holiday decorations in Boston theater district...

A statue on a street, at least one story tall, or a nutcracker in blue and green with a duck head.

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Jessie Oehrlein @numberdance.bsky.social · 21/08/2026

The formatting here of course leaves a lot to be desired, but I think I do miss things being compact? #WayBackCollegeChallenge

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Jessie Oehrlein @numberdance.bsky.social · 26/06/2026

ArieForce One 😕 very happy to have gotten two visits over the past couple of years with a bunch of rides on this beauty

Looking from the chain lift side at a lift hill, first inversion, and first turn on a white, red, and blue steel roller coaster.

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Jessie Oehrlein @numberdance.bsky.social · 16/05/2026

#MathsToday cheered and cowbell-ed so hard for all our graduates, including one who gave the student address! I'm particularly proud of Mackenzie, our very first student to graduate with a Data Analytics minor 📊 her cap referenced multiple courses she took with me 😭

A graduate in her robe with several stoles and cords smiles beside Jessie, in a blue doctoral robe

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Jessie Oehrlein @numberdance.bsky.social · 07/05/2026

#MathsToday Last day of classes done! Just finals and grading to go. It's been kind of a rough semester, so I'm pretty glad to see it wrapped up. Concept map day in PoDA and Applied Stats. The PoDA students leaned silly with theirs, which was very fitting for this group.

Concept map on a whiteboard with "Data" at the center. Some serious things about visualization, cleaning, and modeling branch off of that, but so does "2000" (the course number), then connected to "year" which connects to "2007" and then "recession." Elsewhere, a line mysteriously goes from a penguins dataset to somewhere out of frame.

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Jessie Oehrlein @numberdance.bsky.social · 02/05/2026

Have very much fallen off the every day, but a few more #EasterSkies from this week

Waves of gray clouds over blue evening sky at a train station

Budding tree tops against flat gray clouds and a blue horizon

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Jessie Oehrlein @numberdance.bsky.social · 22/04/2026

#EasterSkies Day 17: at the lacrosse field this evening

Blue sky with green trees and a stadium light

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Jessie Oehrlein @numberdance.bsky.social · 20/04/2026

#EasterSkies Day 15: hint of pink at the beginning of sunset

Wisps of white clouds in a blue sky, tinged pink

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Jessie Oehrlein @numberdance.bsky.social · 17/04/2026

#EasterSkies Day 13: good chunks of this week felt like this

Lots of clouds, mix of white and gray, some tall, over green grass, spring trees, and red brick buildings

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Jessie Oehrlein @numberdance.bsky.social · 16/04/2026

#EasterSkies Day 12: the smokestack again, but foggy

Very foggy gray sky, with a large brick building, a street intersection, and a parking lot. A green smokestack disappears into the fog.

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Jessie Oehrlein @numberdance.bsky.social · 15/04/2026

#EasterSkies Day 11: clouds at the end of the workday

Blue sky with many kinds of white clouds. Tops of trees, some light poles, and the green Fitchburg State smokestack are visible

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Jessie Oehrlein @numberdance.bsky.social · 13/04/2026

#EasterSkies Day 8: gray evening after a beautiful spring day

Gray sky with the tops of bare trees in the woods

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Jessie Oehrlein @numberdance.bsky.social · 10/04/2026

#EasterSkies Day 6: That is... not what time it was. But lovely clouds!

White clouds on the left, pale blue sky on the right, looking up at a roof with a stopped clock in the center

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Jessie Oehrlein @numberdance.bsky.social · 09/04/2026

#EasterSkies Day 4: I thought I got a sunset picture, but instead I failed at phone cameras and had a photo of a railing and some patchy grass. 😅 So here's a night sky through a window.

Mostly black sky, with some lights at the edges from houses and street lights, very diffuse

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Jessie Oehrlein @numberdance.bsky.social · 20/03/2026

Pretty proud of my on-the-spot drawing of the two different sequences of intervals, though.

Drawing and expanded proof of Lemma 1 in Li and Yorke's Period 3 Implies Chaos. The drawing shows a sequence of intervals. Each interval is a subset of the image of the previous interval under a map F. Another sequence of intervals is nested within each other, with the nth member of the sequence having the nth original intervals as its image under F^n. The expanded proof is induction, written with more clearly defined steps (base case, induction hypothesis, induction step).

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Jessie Oehrlein @numberdance.bsky.social · 17/02/2026

Some board summarizing of one of those discussions

Evaluating a data analysis on data matching, exhaustiveness, skepticism, second-order-ness, clarity, and reproducibility

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Jessie Oehrlein @numberdance.bsky.social · 11/02/2026

#MathsToday Started Stat Analysis today with a carousel of different graphs from the same data. It was a little chaotic (mostly because the number of students there today was really not in my favor), but it led to good conversations about making clear graphs with more folks contributing than usual!

A slide of four different bar, waffle, or pie charts on the same data, with varying qualities of labels, contrast, ability to compare groups, etc.

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Jessie Oehrlein @numberdance.bsky.social · 04/02/2026

#MathsToday The problems of the week I post in the dept vary a lot in how much attention they get, but this week's *really* caught a couple students. Diffy boxes/ Ducci sequences are great.

A whiteboard with a problem about diffy boxes in the center, lots of student work to either side.

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Jessie Oehrlein @numberdance.bsky.social · 10/01/2026

Happy first OU gymnastics meet day of 2026! This quote from one of the team's coaches last year isn't something I would say to a student without knowing them really well. When I was younger, I think I might have understood it as "it will never be good enough." But that's not how I hear it now.

A cross stitch that says "Better is still a deduction" in crimson with a patterned crimson border. Next to the text is a gray gymnast doing a leap.

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Jessie Oehrlein @numberdance.bsky.social · 02/01/2026

Okay progress today: some frogging/surgery from yesterday, finished words (will say more when the piece is done about what this means to be beyond OU WAG fandom), and more border work.

Cross stitch from previous posts in thread with more progress. Cream-colored Aida. In crimson floss, says "Better is still a deduction" with three stitches removed in the word "still" from yesterday. A full left border, and parts of a bottom and top border are stitched.

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Jessie Oehrlein @numberdance.bsky.social · 01/01/2026

*Favorite YAs were When the Angels Left the Old Country by Sacha Lamb (historical fantasy-ish) and Come As You Are by Dahlia Adler (contemp) *Favorite nonfic was Frostbite by Nicola Twilley *Favorite sci-fi was Saltcrop by Yume Kitasei *Favorite picture books in the image!

2025 5 star reads: 100 Mighty Dragons All Named Broccoli by David LaRochelle and Lian Cho, Ernő Rubik and his Magic Cube by Kerry Aradhya and Kara Kramer, The Five Sides of Marjory Rice by Amy Alznauer and Anna Bron, How Did You Count? by Christopher Danielson, Magic in a Drop of Water by Julie Winterbottom and Susan Reagan, The Music Inside Us by James Howe and Jack Wong, Don't Trust Fish by Neil Sharpson and Dan Santat, and Cat Nap by Brian Lies

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Jessie Oehrlein @numberdance.bsky.social · 01/01/2026

I'm usually not a big fan of stitching words (even though I seem to do it a lot 🙃), but the back of this is very satisfyingly neat and dense

Same cross stitch as in previous posts in thread, but with more progress. Cream fabric and crimson floss. So far, it reads "is still a deduction" with part of a border.

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Jessie Oehrlein @numberdance.bsky.social · 31/12/2025

At the end of the amount of floss I cut, so here's an update. Making progress...

Same cross stitch from previous post with more progress. Cream colored cloth in a hoop. In crimson floss, says "is still a ded" with last d not complete yet. There is part of a criss cross border on the left.

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Jessie Oehrlein @numberdance.bsky.social · 31/12/2025

Two days until the start of NCAA women's gymnastics season, so I started a new and appropriately-themed cross stitch piece.

Cross stitch piece with cream-colored fabric. In crimson floss, the piece has the start of a diamond border on the left and the words "is still"

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Jessie Oehrlein @numberdance.bsky.social · 15/12/2025

I am very happy with mine (and wrote a little ornament scavenger hunt when I had guests over on Friday)

A Christmas tree lit with multi-colored lights and decorated with many ornaments

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Jessie Oehrlein @numberdance.bsky.social · 30/11/2025

I was crying from the standing ovation before Christina Black's last rock all the way through O Canada. Team Homan 😭🥇 And I'm so glad that the men's final ended on Team Jacobs making a shot to win. It was such fulfilling drama.

Team Homan in Team Canada jackets, walking down the sheet as champions with the Canadian flag in the background

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Jessie Oehrlein @numberdance.bsky.social · 28/11/2025

I'm grateful for getting to see two incredible curling games and also for some friendly seat neighbors for the weekend!

The front end of Team Dunstone sweeps a curling rock into the house, with Matt Dunstone calling line and Mike McEwen watching behind him

Team Einarson warms up on the curling sheet before a game

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Jessie Oehrlein @numberdance.bsky.social · 28/11/2025

not sure which of these was Thanksgiving dinner but they were all delicious

Ube and cheese pan de sal and a mug of hot cocoa

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Jessie Oehrlein @numberdance.bsky.social · 27/11/2025

Canadian Olympic Trials for curling are at the same arena that 2024 Skate Canada #GPFigure was, but they appear to have covered the moose head 😥

Flags hanging at the end of an arena, with a large hanging object covered in black cloth

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Jessie Oehrlein @numberdance.bsky.social · 04/10/2025

Not perfect, but a decent first attempt!

A sheet pan of fried okra, a bit uneven breaded

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Jessie Oehrlein @numberdance.bsky.social · 04/10/2025

Instead of just bread that represents where we're from for World Community Sunday, my church expanded to snacks in general this year. Pralines cooling, first ever attempt at fried okra coming soon...

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Jessie Oehrlein @numberdance.bsky.social · 25/07/2025

here's the cobbler, aka the best summer dessert

A pan of fresh Texas-style blueberry cobbler, very golden with lots of blueberries peeking through.

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Jessie Oehrlein @numberdance.bsky.social · 20/07/2025

🎵 et il s'appelle Jean-Claude 🎵

Roller coaster at Adventureland in Iowa called Monster. Green steel triangular prism track, looks tangled with moments of hangtime. In the distant background is a lake.

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