Digital photography can be both a fun hobby and a great learning and communication tool. But how does a kid who can't click a tiny shutter button use a camera? With a switch! But, you need a switch adapted means to take the photos. A web cam will work... very cool, and easy to do. Most web cams have fairly low resolution for photos, though, so it depends...
For all low-tech lovers, Just stumbled across this free, online graph paper maker - makes pdf's of graph paper according to the parameters you choose - size, color, line weight and layout. You can choose squares, dots, triangles, hexagons, diamonds, horizontal lines with light verticals, and even 'axiometric perspective' (I had to ask, too.) If you scroll down further, you can also generate number lines, Cornell Note taking...
