Scratch: programming for all.

Resnick, M.; Maloney, J.; Monroy-Hernández, A.; Rusk, N.; Eastmond, E.; Brennan, K.; Millner, A.; Rosenbaum, E.; Silver, J.; Silverman, B.; Kafai, Y. (2009) Scratch: programming for all. Communications of the ACM, vol. 52, n. 11, p. 60-67.

2009