One of my students create a screencast for me. She explained why an unusual division algorithm must give the correct answer to a division question. In it, she beautifully used the definition of partitive division. I was also particularly impressed by her decision to use “rods” to represent the “ones” (we normally use “blocks”), since it makes the decimals work out nicely. We had not discussed that much in class, and it had been months since we discussed it at all.
Also, she learned this technology on her own. I pointed her to the Jing website, but she learned how to use it, created all of the slides and graphics, and scripted her presentation herself. I love this.
She was nice enough to grant me permission to share this here:
Vodpod videos no longer available.