Each group needs:

• computer
• microphone, such as the Cyber Acoustic CVL-1064 Desktop Microphone  at Amazon
• Audacity software, free audio editing and recording software; downloaded from https://www.audacityteam.org/download/
• musical instrument, such as a clarinet, recorder, violin, viola, tuning fork or “boomwhackers,” available at https://boomwhackers.com/
• 12-inch hollow Styrofoam dome/half-sphere, used as an acoustic mirror; see Figure 8; available at craft stores such as the 12-inch Smoothfoam Half Ball at JOANN; domes are reusable for future classes
• 12 x 12-inch piece of cardboard, for the base of the acoustic mirror; size may vary
• 4 x 2-inch piece of Velcro tape; available at craft and hardware stores such as https://www.homedepot.com/; alternatively, use another type of tape or adhesive to attach the Styrofoam dome to the cardboard
• meter stick
• KWL Chart, one per student
• Acoustic Mirrors Analysis Worksheet, one per student