Ice cubes melting in fresh water and salt water. By Mirjam S. Glessmer

Using the “melting ice cube” experiment to let future instructors experience inquiry-based learning.

Using the “melting ice cube” experiment to let future instructors experience inquiry-based learning. I recently (well, last year, but you know…) got the chance to fill in for a colleague and teach part of a workshop that prepares teaching staff for using inquiry-based learning in their own teaching. My part was to bring in an experiment […]

Taxonomy of multiple choice questions

Examples of different kinds of multiple choice questions that you could use. Multiple choice questions are a tool that is used a lot with clickers or even on exams, but they are especially on my mind these days because I’ve been exposed to them on the student side for the first time in a very long […]

On how ice freezes from salt water

I’ve been wondering how to best show how sea ice freezes for quite a while. Not just that it freezes, but how brine is rejected. By comparing the structure of fresh water and salt water ice, one can get an idea of how that is happening (and I’ll write a post on that after we […]

A #KitchenOceanography escape game for freedivers!

For the Christmas party of my freediving club, Active Divers, I made a freediving-themed #KitchenOceanography “escape game” (of sorts). If you are interested to use it for your own purposes, please feel free to contact me for detailed instructions and material lists etc! This is how it went: We formed teams with three players in […]

Increasing inquiry in lab courses (inspired by @ks_dnnt and Buck et al., 2008)

My new Twitter friend Kirsty, my old GFI-friend Kjersti and I have been discussing teaching in laboratories. Kirsty recommended an article (well, she did recommend many, but one that I’ve read and since been thinking about) by Buck et al. (2008) on “Characterizing the level of inquiry in the undergraduate laboratory”. In the article, they […]

Tilting frontal surface under rotation / cylinder collapse

Torge and I are planning to run the “tilting of a frontal surface under rotation / cylinder collapse” experiment as “remote kitchen oceanography” in his class on Thursday, so I’ve been practicing it today. It didn’t work out quite as well as it did when Pierre and I were running it in Bergen years ago, […]

Workshop prep and a riddle

Looking at the picture below, can you guess which experiment I am going to do at the MeerKlima.de workshop? Yep, my favourite experiment — melting ice cubes! :-) And I am obviously prepared for several extensions of the classic experiment should the students be so inclined… Now I only need to get the ice cubes from […]

How to plan a course from scratch

Where do I even start??? A very helpful concept, which is completely contrary to how most people approach course planning, is “backward design”. Instead of looking at all the cool experiments, the awesome, fun materials, the best case studies, we first look at the learning outcomes we want to achieve with our course. From those […]

Why folic acid might be good for people, but not so good for tank experiments

I had to do the complete series of experiments, of course… The other day I mentioned that I had used salt from my kitchen for the “ice cubes melting in fresh and salt water” experiment, and that that salt was the super healthy one that was both iodized and containing folic acid. And what happened […]