This article explains some of the motivations and advantages of incorporating "making" in the classroom. This is the second of a six part series (in progress at the time of this writing). Teachers who are doing or want to get started with DIYing will find this background on the approach written by experienced teachers to be enlightening.
Servo motors are commonly controlled by microcontrollers and this post introduces them with a nice practical example. The inclusion of photos and code is nice, but what I like most is that the example uses buttons to control the motor, allowing students to interact with their project.
This lesson plan doesn't actually require any hardware or directly involve a microcontroller. Instead it focuses on the thought process of breaking down one problem into smaller steps. It revolves around sensors and data collection, which are both integral parts of learning to use a microcontroller.
Everyone has to start somewhere, and this lesson is the starting point for most people who are new to microcontrollers. Learning to make an LED blink on and off is a simple first program that comes with the simple gratification of watching your code do something in the real world. There are many variations of this tutorial, but this is my go-to.
This tutorial covers the basics of analog to digital conversion as it applies to microcontrollers like the Arduino. The tutorial is concise and has useful examples without becoming overly involved. It is perfect for high school students who are new to electronics design. In addition Sparkfun is a good website to purchase the electronic components needed for many projects. I highly recommend their kits as a starting point for exploring any new project or technology.
This is one of the most helpful examples I have ever come across. In this video they demonstrate the basic principles of Mosfet operation but more importantly provide an example where they pull numbers off the datasheet and plug them in to simple, albeit useful design equations. With this video you can bypass (or relearn) that Mosfet chapter in your Electronics 101 textbook.