This large 7 segment display matrix (it's 10"/250mm high!) can be used with our Arduino LinkBox to create scoreboards, marking systems and lots of other display panels.
We use six of these matrices to show the team scores in our Quiz project and the code that drives the matrices is here.
The video below shows the 7 segment display in use (at 0:59)
“When I first got my hands on a Raspberry Pi early experiments with breadboard and jumper wires were a disaster. I had decided that there probably wasn’t a niche for the Raspberry Pi at KS2 until I got my hands on a set of gPiO interfaces. I now teach physical computing on the Pi throughout my school, starting with children as young as 8 – and they love it!”