Last week students had a chance to experiment with Vernier's GoMotion probe. They did modified versions of experiments #20-22 in the Vernier elementary experiment book. I left the science more open-ended and we didn't do the parts with trying to make the different letters or specific graphs. That will come another day.
They experimented moving their hand up and down toward/away from the probe at different speeds and also walking toward/away from the probe at different speeds. They worked in groups of 3-4 and after experimenting for about 15 minutes I asked them to write. They had to write about what they did, what they learned, what was difficult, what they wonder, and anything that confused them. After writing they shared their reflections with a member of one of the other groups.
Another day we will use the motion probe with more specific tasks as well as discuss when/why a motion probe would be useful in real life.