I like to save voice as the final trait of the year we look at. I find Springtime to be a time when students start catching the "lazy worker fever," and I have to brag that I have great voice lessons: fun and engaging.
We have been enjoying Voice as our "Trait of the Month" since right before Spring Break. The students were mostly appreciative, I think, of my wife's famous J. Peterman Voice Lesson, which I did on a Smartboard for the first time this year.
