"No, I would advise you probably not do that," says Carter.
[Updated at 10:22 a.m. ET]
"It's fluid; the law as it applies isn't static. Any change in a certain fact can weigh differently in terms of whether someone acted reasonably," says Carter. He says he would show his class videos and pause them to look at how things were changing in a situation.
[Updated at 10:20 a.m. ET]
Carter says he taught his class: "When stuff hits the fan, you're judged by jurors, and your actions have to meet a reasonable standard, objectively. So whether or not a reasonable person in your position would have felt the way you felt." He also says part of self-defense is the individual's subjective feelings of facing death or "grievous bodily harm."
[Updated at 10:16 a.m. ET]
Carter says he talked about the evolution of the castle doctrine in his class.
"Right, I think what happened is the presumption changed. If you're attacked in your home, there's a presumption that you're in fear of your life ... it extended outside of the home but there wasn't that same presumption. That same presumption doesn't exist outside of a home," says Carter.
[Updated at 10:14 a.m. ET]
Carter says he used his knowledge of Florida law, having been admitted to the Florida Bar, to talk to his class about self-defense.
[Updated at 10:09 a.m. ET]
The attorneys are at a sidebar.
[Updated at 10:08 a.m. ET]
Carter says he's familiar with the laws of self-defense in Florida. He says "stand your ground" is a nickname. Carter agrees with West that if you're in your home, you have "no duty to retreat" and may "meet force with force" to defend yourself. West points out that the "stand your ground" law extend this to outside the home. West says that before, you had to retreat if you could.
[Updated at 10:04 a.m. ET]
"Stand your ground" is not in the course book, according to Carter. He says his discussions about the law in Florida would have been done in class.
[Updated at 10:02 a.m. ET]
Carter says he didn't write the book he used in class, which didn't focus specifically on Florida law.
[Updated at 9:58 a.m. ET]
Defense attorney Don West begins his cross-examination. He points out Zimmerman, and Carter waves to him, saying, "Hey George." West asks Carter about his background.
[Updated at 9:56 a.m. ET]
Carter says the course book was more generic, not covering Florida law, but he wanted to make the class more practical. He says he taught his students about the "stand your ground" law.
"It's not one of those things that you're just going to whisk through in a day ... it was something that I constantly iterated. ... It was something that I think the students really wanted to know about, it was so practical, they were very much engaged in class discussion," says Carter.
The prosecution has finished its questions.
[Updated at 9:54 a.m. ET]