This Inquiry-based mini unit let's students discover Pi and then confirm their findings with hands on activities. A little history and circumference practice are also included. Have fun on Pi Day or any day of the year with these engaging activities. Activity 1: Pop it! Students discover the value of pi by doing an activity with bubbles and string. This inquiry activity will solidify their conceptual understanding of the equation for circumference of circles. Activity 2: Circumference Pr