Maker-STEAM Checkout Inventory 

• Garmin Etrex 22x 

Age Recommendation 

• 6-12th Grades 

Resources 

• Garmin User Manuals 

Tips 

🧠 Getting Started

• Install fresh AA batteries – Start with a full set of batteries or rechargeable AAs to ensure reliable performance during field activities.

• Wait for a GPS signal – Allow the eTrex 22x a few minutes outdoors to acquire satellites before beginning navigation or recording data.

• Set your map and units – Verify the coordinate format, map datum, and distance units match your lesson or activity requirements.

🛠️ Operation Tips

• Mark important waypoints – Save locations such as trailheads, checkpoints, or study sites for easy navigation back to them.

• Keep the GPS facing upward – Holding the unit with a clear view of the sky improves satellite reception and location accuracy.

• Save your data after activities – Review and store tracks and waypoints before turning the device off to preserve fieldwork records.

🌟 Teaching Ideas

• Create a geocaching challenge – Have students use coordinates to locate hidden checkpoints while practicing navigation skills.

• Map field observations – Record the locations of plants, wildlife, or environmental features for geography and science investigations.

• Explore real-world mapping – Teach students about coordinates, distance, elevation, and route planning through hands-on outdoor activities.

Activities and Lessons 

• Geocaching Introduction