This experiment is designed to have students think about theoretical probability vs. actual outcomes. Theoretical probability is the idea that if a coin is flipped 10 times, it should land on heads 5 times; and if it is flipped 20 times, it should land on heads 10 times, etc.
This 5-page document includes a 3-page experiment packet and answer key for the teacher. Students will need a pencil and a coin (real or plastic) for this activity. You could also use the virtual coin available at http://www.random.org/coins/, but I do not recommend this for elementary classrooms. (Access to technology may vary depending on your school, and while most of the coins are actual world currency, some of the coins contain questionable language!)
In this activity, students:
-State the probability of heads and tails results
-Flip a coin 30 times and record their results
-Answer questions to analyze their results.
When I used this activity in my classroom, I used plastic coins that came with my school's math manipulative set. It took us about 90 minutes to give directions and perform the experiment. Very few students had to finish the questions for homework.
Thanks for looking! I hope you find this useful.