The lesson will begin with students learning about how to utilize the “Mountain Method” to calculate elapsed time. Guide students in learning and understanding the 3 steps to use the mountain method when working with problems or situations to the nearest minute. Instruct students about what increment of time each symbol represents. Then, students will be instructed on how to utilize the method in a guided example, followed by another word problem they will solve on their own by dragging the mountains, hills, and rocks and adjusting each clock. Students will practice by completing several activities such as filling in the elapsed time for a flight schedule at their local airport.