Group 2 answers the question at top of p. M-10 (compare magnet to ferromagnetic material that is not a magnet). They note that the attraction between a magnet and a ferromagnetic material is weaker than the attraction between two magnets.
Group 1 discusses the making sense question. They are somewhat unsure about the difference between a ferromagnetic material that is not a magnet and a magnet. Tiffani explains the difference nicely. They conclude that rubbing the nail turns it into a magnet because it behaves like a magnet. Near the end Jessica asks: 'If something behaves like something (magnet) does that mean it is that (a magnet)?'
Group 2 discusses what happens if you drop the magnetized nail in water. They say that the nail would become unmagnetized citing as evidence experience with a magnetic strip credit card. They do the experiment and find the nail remains magnetized.
Group 1 discusses Summarizing Question #1. They first agree with the idea that the magnet would pick up all metals. Then when Veronica mentions copper that a metal that is not attracted to a magnet they realize it will only work for ferromagnetic metals.
Two students in class say inside and support their claim with evidence. A third student then claims both on surface and inside because a rubbed nail can be unrubbed (because the instructor had said he could do it). A fourth student also supports both inside and on the surface because the nail is a solid piece of iron.