Each group needs:

• GPS-enabled device (most smartphones are equipped with GPS receivers)
• GPS app such as Free GPS (for Apple iOS) or Maverick: GPS Navigation or Handy GPS (for Android)   
• computer or other device with an internet connection and Google Earth software installed (or the capability to install the software)
• Appendix A: Student Activity Handout
• protractor
• ruler

For the class to share:

• small folders or plastic tubs to hold the contents of the geocache
• Appendix C: Problems for Geocaches