Another day like yesterday, filled with measurements and discussions of how they are done correctly. Today, the goal was to make sure that students could use a graduated cylinder correctly--first, fill it to 10 ml, then measure the volume of 3 orange plastic marbles. They put their data on the smart board, and we ran out of time to discuss it. One common error was to forget to subtract their original volume. This is called the displacement method because the water is displaced by the volume of the object measured.
Day 7 will bring some discussions of this, and then review of some properties of matter.
Sweet justice.
