I'm sorry we'll miss you the first Saturday. We'll look forward to your participation in October. I wish you the very best as you are getting this first year underway. Let me know if I can be of any help : )
sure! you buy a ton of recies pieces and put 25 randomly assorted pieces into bags for each student or groups if you want to save yourself some money. The explanation sheet is on my KEEP tool kit. Then have your students count the different number of orange, brown, and yellow pieces and use the masses on the sheet. This is then the atomic mass for each "isotope" of the yellow, brown, and orange pieces. Have the students then add all the masses up and divide by 25, the number in each baggie. This is the average atomic mass with relation to their isotopes. I hope that made sense. If it doesn't let me know!