freediving – Adventures in Oceanography and Teaching

Currently reading Shoshani (2025) on “Teachers’ flow, emotional well-being, and optimal teaching and learning experiences”

mglessmer — Wed, 23 Jul 2025 06:25:44 +0000

I’ve been vaguely interested in the persistence of emotions ever since Marlis’ presentation about eco-emotions since at least mine can fluctuate enormously (which makes it very hard to fill in any surveys that is asking about emotions because I never know whether they want to know how I feel right this second, or on average […]

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A little Sunday freediving & wave watching

mglessmer — Sat, 28 Jun 2025 17:11:53 +0000

Last Sunday, we went diving at Ön in Malmö again and it was so beautiful! I really enjoy how much light there is in the water here, and how much stuff to look at (which, arguably, there might also be in the quarry where we usually dive, but then with the amount of light and […]

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A little wave watching

mglessmer — Sat, 21 Jun 2025 12:36:22 +0000

This practice of posting pictures only on my blog and not on Instagram is becoming really problematic when I am too busy to post every dip or dive the day it happens and, worse, there are several dips and/or dives happening every day! So here are some pictures from a dive in Limhamn to catch […]

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#WaveWatchingWednesday

mglessmer — Wed, 17 Jul 2024 03:57:20 +0000

Here comes the recap of two very exciting trips: To the 31nd AIDA World Championship in Pool Freediving, and to Kreidesee in Germany, where we did some freediving ourselves. Enjoy! First, the ferry trip to Lithuania! The pool in Kaunas. Documenting team @swe_freediving starting their first training day at #32ndaidawch … … and collecting good ideas for how […]

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Dive camp bingo

mglessmer — Mon, 21 Aug 2023 06:51:19 +0000

While on the Bingo trip to nudge people (see here for example for fieldwork activities for students, or Universal Design for Learning for teachers), why not make one for the Active Divers dive camp?

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Teaching about a deep approach and surface approach to learning

mglessmer — Tue, 09 May 2023 16:28:07 +0000

Things I didn’t try beforehand and that still worked out well: asking participants to brainstorm what students do who perform well in their courses, what less successful students do, collecting & clustering keywords for both on the whiteboard, and then projecting a picture from our Active Divers freediving training on top to stress the point that […]

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Total internal reflection

mglessmer — Sat, 25 Feb 2023 08:42:04 +0000

In the “static apnea” discipline in freediving, many cool pictures of athletes are taken underwater in a way that plays with the reflection of the athlete in the still water surface. This can lead to pretty spooky pictures (like the one of Victor in the top left). We do have other experiences with water, where […]

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A simple way to visualize how hydrostatic pressure increases with depth

mglessmer — Sat, 25 Feb 2023 07:31:26 +0000

I did this demo for my freediving club Active Divers (and if you aren’t following us on Insta yet, that’s what I am taking all these pretty pictures for!): 1.5l PET bottle with holes punched in every 2cm, then filled with water. Looks cool and works pretty well (except the second hole from the bottom up, […]

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#WaveWatchingWednesday

mglessmer — Sun, 05 Feb 2023 10:02:13 +0000

Shockingly little #WaveWatching currently happening on my Insta @fascinocean_kiel (maybe I also need to reconsider the name at some point?), but here are the latest pictures!

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Breathing practice: Where freediving and academic development collide

mglessmer — Fri, 20 Jan 2023 10:04:27 +0000

I recently wrote a lot about the emotions that we experience when really thinking about sustainability and the challenges that we face when we take it seriously (e.g. here), and of course experiencing negative emotions like feeling anxious or hopeless or angry is not only happening to our students, but also to us. I attended a […]

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