This cooperative activity is meant for a high school chemistry class ready to introduce the concept of bonding. Through the use of "electron dollars," students are asked to problem solve to share and transfer money to fulfill the octet rule. After students have found both solutions (sharing and transferring money) to the problem, they are asked a series of questions relating to the loss or gain of money and how that will effect their charge, reviewing the idea of ions, and connecting it to ionic bonding.
My students love doing this activity and gave them an understanding of bonding before we dug in deeper. I use the analogy of electrons as money throughout the unit because it is something students can relate to, as well as reflect back on after using this activity.
I have used this activity for years in my chemistry classroom, but it still is not perfect, so please provide feedback and ratings so I can continue to make it better for your classroom, your kids, and mine.