StarLogo TNG is similar to Scratch, perhaps a little bit less intuitive, but it's 3-D and lets you do some pretty cool stuff. I'm a bit biased, because I worked on StarLogo TNG, but not biased enough that I won't admit that Khan Academy has by far the best programming tool for kids I've seen so far. I can't say enough good things about it.
StarLogo TNG is similar to Scratch, perhaps a little bit less intuitive, but it's 3-D and lets you do some pretty cool stuff. I'm a bit biased, because I worked on StarLogo TNG, but not biased enough that I won't admit that Khan Academy has by far the best programming tool for kids I've seen so far. I can't say enough good things about it.