Thank you for your replies and your suggestions.
Jason EFL is English as a Foreign Language. (I live in the Amazon region of Brazil.)
I use WBT, including the scoreboard, in all of my classes, but 3 of them weren't responding well to the incentives and especially to the penalties, and I realized I needed to try Industrial Strength WBT.
I was able to start Industrial Strength in 2 of the classes and have had elections in a third. I wasn't able to get up the suspense that is suggested in the ebook, but was amazed at the reaction in one of the classes when I praised some of the leaders and gave the class points. It was immediate attention all eyes up front!

Something I have rarely been able to get in that class.
In general they like working in pairs and a topic that almost everyone is interested in is soccer, especially with the city school soccer and volleyball tournaments coming up and World Cup Soccer coming to Brazil in 2014. They are also getting hooked on Mind Soccer - yeah!
Thanks again!
Please keep the suggestions coming.
Sister M. Josefa