SMART Lesson: Punnett Squares

I'm in the middle of our genetics unit and we are at the point where students are practicing Punnett squares to determine the probabilities of different genetic outcomes in offspring. I searched for "punnett square" and got a lesson called "Punnett Squares" by C.Moss on August 4th 2010. It is PERFECT for having students come up to the board and click their way through different scenarios. What I especially liked are the "pull" tabs that the creator added on the edges of the slides. These tabs are informative for the teacher and they tell you where to click on the screen to have answers/definitions "appear" out of seemingly blank space. I have see other lessons where it was difficult to know how to use it, but these pull tabs make it easy for anyone to use it in their classroom.
    My favorite slide is the last one where there are two dice and students must click them to get random genetic pairings which they then must do a Punnett square with. It is kid friendly and begs for student interaction.
    In the past I have found that with some topics in the curriculum it is difficult to find a perfect presentation to use but if you can take one or two slides and put them to good use in the classroom I think it will really be worth it!