What is Micro:bit?
Micro:bit is a result of efforts of British BBC and its initiative ¨Make it digital¨ to design a micro-computer that would enable a school teaching of both programming and electronics. Micro:bit could be summed up in one sentence as extremely user friendly even for the youngest fans of electronics, which opens up potentially easier and more intuitive teaching for lower classes (Micro:bit suggests to levels of curriculum - for ages from 7 to 11 and 11 to 14, both of which seem rather below the main target audience of Arduino or even more so Raspberry Pi). It features simple clip pins, rather than soldered standard pins as both in Raspberry and Arduino, as well as built-in buttons, sensors (accelerometer) and LEDs. So there is quite a good setup to start learning when you take the board out of the box, without a need to additionally assemble it, which might be challenging for the youngest. Additionally, there are connectivity solutions already in-built with drivers configured (BLE and USB).
An extensive and well-covered curriculum
As mentioned, given that Micro:bit is a purely educational project it comes with a very well-defined and prepared set of classes for the youngest. Lessons are divided into separate units of work covering most important building blocks of programming knowledge in an easy and tangible way (blocks include for example Data Handling, Basics of Algorithms, Electrical Conductors). Each segment can work independently to an extent giving even more flexibility to the teachers. On top of that, there is a range of on-off projects available for the study and development. All in one very intuitive repository on the micro:bit website.
On top of the curriculum, Micro:bit has developed a range of tools to support their teachers including virtual classroom, which enables sharing code with your students as well as generate class reports. The virtual classroom is available both in MakeCode and Python.