From: Cathy Danielson (firstname.lastname@example.org) Date: Tue
Jun 17 2003 - 13:34:40 EDT Next message: Jesserogue@aol.com:
"[Channel-talkchemistry] atoms and molecules lesson ideas" I
have my students create their own periodic table using element
cards, much like the teacher in the program did. I have found my
students somewhat confused - just as his students were! I don't
know if this is my own idea or if I borrowed it from someone
else, but I have had much more success when using pieces of
colored paper as an introduction to the element card activity. I
give each group of 3-4 students a set of paper pieces (usually 6
colors with 5 sizes of each color - all in a Zip-Lock plastic
bag). I instruct the students to arrange the paper pieces in a
logical order. Most students arrange by both size (which can be
compared to atomic number) and color (which can be compared to
color). Many also arrange in a "rainbow order" which can also be
related to the idea of periods running from most reactive metal
to Noble Gase