9/9/10 - Biology - Day 3 - Scientific Method

Started the class off with tech questions from yesterday.
Discussion board (make sure they are signed in, due tomorrow at 11:59, click on reply to answer, 1st period entered their usernames)
Twitter (log on questions, eliminated the tweet of week assignment, only used for communication of reminders and occassional assignments)
Glog (try to log on soon so any glitches can be worked out, changed the due date to a week from friday (9/17), showed 1st period mine and how to do it)
Went over the log in if you are outside of school (tk-domain\usn and password)

Engaged: within small groups came up with a list of the scientific method
One group wrote the list on the board. I asked the other groups to comment or change the one on the board. I led a discussion to make the list complete and in order.

Explore: Did the bubble gum lab.

1. Handed out the lab sheet.
2. Had one student read the first problem out loud.
3. Within their small groups, the students discussed and wrote down their hypothesis.
4. Had one student read the 2nd problem out loud.
5. Within their small groups, the students discussed and wrote down their hypothesis.
6. I asked to disclaimers: Can any student not chew gum? Does any student get sick from the site of chewed gum?
7. Told the students to not do anything with the gum but take a piece and pass the rest around the room.
8. Go through the procedure with the class and show them the data table.
9. Talk about the initial weight and what that represents (control) and why that is important.
10. Explain that I will keep the watch and we will all do it together. When they are done weighing they are to turn and face me so I know when we can move on.
11. Tell them that they are to weigh their gum on their wrapper so they keep the gum clean.
12. Show them how to use the scale (zero it everytime and don't put anymore weight then neccessary).
13. Follow the table with timing and get to work.
14. What ever is not finished in class is to be done as homework. Pass out graph paper.
15. Can't finish the last question if the averages are not given in class.
16. Lab is due tomorrow.