Next, to find a heading of 90 o , have students rotate the housing to line up 90 o with the directional arrow. Then have students turn their bodies around until the needle re-aligns with the arrow in the housing. This is a heading of 90 o . Students now walk in the direction indicated by the directional arrow, making sure to keep the housing arrow lined up with the needle at all times. As they walk, have students practice using their measuring string by marking out a distance of five yards.
Students can pick a team name.
Each team is allowed to pick its own starting point on the playing field. They should place it face up on the ground, weighted if necessary. After completing their courses, students switch courses with another team for Round 2. This portion of the activity allows teams to practice following another team's migration route. As teams follow the traded courses, they should pick up the cards as they go.