This blog is now protected


With the help of Cloudflare my blog is now HTTPS enabled and in case of a DDoS attack the service also can help manage the traffic. It’s free! Cloudflare is a ‘content delivery network’ service. Basically is helps the web server to serve the website in a durable way to visitors (and prevents attackers from accessing the website).

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Student centered learning

Student-centered learning and subject cluster projects.

Hello World is my favorite magazine. It’s from the UK and is all about computer science and teaching/learning the subject. I was asked by my dear friend Miles Berry to prepare a 1000 word piece about student-centered learning. Quite a challenge I can assure you. I wrote about student-centered learning with ‘profielwerkstukken’ (final research projects in the last phase of education).

My students loved it, made my mother proud and I found a new skill.

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Ikea bike
Sladda? This is not yet an other bike review

Sladda, the IKEA bike

This is not yet another bike review or is it.

UPDATE: IKEA recalled the bike and I gave the bike back to IKEA 🙁

Drinking my coffee in Amsterdam and letting my thoughts go free I noticed quite a few bikes with a blue tire. And that started this blog. Why buy a bike when you can lease one for the price of 3 Starbucks beverages a month. Or why buy a bike preassembled when you can have the fun of building your own bike with an IKEA kit 🙂 I have been using the bike for over 7 months.

Netherlands, land of thé bike

Amsterdam alone has over 847.000 bikes, in the Netherlands there over 22 million bikes! So, we know how to bike and most famous bike brands are Dutch, including VanMoof, Royal Gazelle, and Batavus. With more bikes then people you can state that we are a bike nation. Ask a random tourist and bikes will be in the top 3 things from the things they saw in the Netherlands.

I’ve used a bike since I was 3,5 years old. Learning to use a bike and be confident in using it takes practices, practices, and practices. My mother (and my father) helped with that a lot. First with side wheels (untranslatable), later on with the assistance of my parents. A few weeks later I’ve managed to use a bike independently. And with great power comes great responsibility, living near a canal.


Love the design and the lack of chain. It’s a sturdy bike and easy to assemble. Pricing is fair, and it’s a unique design. It has a great frame, sturdy and head-turning design. Using it daily is still fun, the design makes people turn their head and in the large bike storage in Den Bosch, it’s easy to find my bike. There is only one 🙂


Having never built a bike from a kit it was quite a challenge to assemble it into a working bike. A few screws on the bike came lose during biking; scary! With some lock tight, the screws and bolts will not move again. The frame is sturdy, but a bit heavy.


Starting from €399,-

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Eat, sleep, learn & repeat

Based on the song from Fat Boy Slim; Eat, sleep, Rave & Repeat this is a mantra that sticks. Experimenting!

Learning is what sets us apart from the Neandertal. We can cope with setbacks, a change in environment and the ability to learn from feedback.  In this short blog a few experiments to keep the mind busy, keep my employer happy, enjoy the benefits of being a Homosapien, to learn and share what is working!

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A few days in Berlin

Really enjoyed a few days in Berlin.

In a few pictures here or with the context on Instagram


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Fog, clouds & Google

Fog, just a surface based cloud not going Google.

It’s so easy to forget where we came from. Everything always on, always available and automatically saved with no real need to backup. Is this an idyllic world? Or a dystopian future? Is Google the answer?

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Long Reads, a long reading list

Yes, I love long reads

This is just a short blog about a page I started some time ago in draft mode. The long reads that keep me up at night, things I really want to read and that started a new way of seeing things.

I really love how these blogs redefine my (world)view and I try to convey that feeling in my classes computer science. Longs reads require an effort and a conviction to continue on reading. They challenge, perhaps even convert but mostly they can pinch a nerve. A few of my favorite long reads can be found in this blog. I’ll keep a static page with all the hyperlinks to the long reads on my website.

Longreads features the best storytelling on the web from hundreds of publishers. Story picks include longform journalism, short stories, in-depth interviews, and even historical documents. –

The items on the page will be without any remarks or suggestions.

Want to add one? Or suggest a long read? I’m on Twitter!

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7 lessons I learned from designing a new subject

To be worked out with working examples

These are the seven lessons I learned from designing a new school subject

  • Start with the end in mind
  • Let the learning happen
  • Give control
  • Eat sleep, learn repeat
  • Enjoy the boredom
  • Communicate the change
  • Be surprised
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Why I teach (still in Dutch)

Sorry, Dutch only. With Google Translate this page can be in English.

Dit is de reden dat ik lesgeef

Net even vroeger dan gewenst zit ik weer in de trein naar ‘s-Hertogenbosch (05.45 eruit; 23:45 erin).

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Off to the BETT
Things and thought about the BETT

Traveling to… (and yes, this is a growing blog)

Yes, I’m inbound to London! Together with one of the board members from i&i I’m attending BETT.

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