Crucial Thought Rss

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Chris selected as K12OnlineConference keynote speaker Each year the K12OnlineConference provides tremendous professional development for free, and entirely online. This year, they have selected me as one of their keynote speakers. I am thrilled to have been chosen and look forward to participating in the conversation. Read the full post announcing all the keynote speakers here.

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Two quick links on Cognitive Load Theory I've been fielding lots of questions lately about Cognitive Load Theory. Here are two quick links that may be useful. First is an article talking about the practical implications of CLT on the design of learning. The second are some "recent" (as of 2003) developments regarding CLT. Happy reading! Update: I clarified the second...

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Practical advice on kids and Android app development After hearing about my students' success developing an Android app, I've gotten several emails asking for more details as to how I practically worked with my kids. Here are some pointers that I offered to the first person that emailed me, perhaps they are of some use to you. Please note that your mileage may vary. It's ok to not be...

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Publishing an App Inventor app to the Android Market As I mentioned earlier, my students and I published an Android app to the Android Market. See those links for more information on the background. This post is decidedly technical. First, once we finished the coding process, we packaged the app for to download to the computer. This is an option in App Inventor. This downloaded an .apk file....

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Designing and publishing an Android app with kids This post is designed to provide some context around how/why we decided to build this app. The more technical details of the code and how we published it will come in a future post. My students and I recently completed and published an Android app, and here's how we did it. First, the genesis for this goes back to a question I asked...

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Lego NXT 2.0 Light Sensor programming woes EDIT: Fixed

Category : General, Software

I need some help please programming with the light sensor. I am brand new to Lego Robotics, so forgive me if this isn’t the right place.

I am helping my daughter with a science fair project. We are going to put an NXT Robot (a little bumper car) in a big cardboard house with one opening (the door). Our goal is to see whether the robot gets out faster using its touch sensor or by using its light sensor.

We’ve programmed it (touch) to bump into a wall, back up, turn a little bit, and go forward until the same thing happens. It looks and acts much like our Roomba (her inspiration).

We are having real trouble with the light sensor programming. It looks like we have to connect certain “wires” to other wires in the programming software, but I’m lost.

Can anyone help with a program to help make this work?

EDIT: To clarify, the inside of the “house” is dark. She’s going to have a flashlight at the door to the house and hopefully the robot will seek after the light to escape the house. Like a moth to a flame…

EDIT 2: I did it! Thanks to all of you for your help. Here’s how I did it.