Students: At each checkpoint you must list the city, country, and continent. The teacher must
check all answers before you can go on to the next checkpoint.
Checkpoint 1: Start at: 29°N 98°W and go to: 19°N 99°W
(Country)
(city)
(Continent)
(city)
(Continent)
(Country)
A. What international boundary did
you
cross?
B. What state are you in?
_C. What political significance does this city have?
D. What mountain range lies to the west?

The first coordinate "29°N 98°W" is located in the following:

City: Falls City

Country: United States

Continent: North America

An for the second coordinate "19°N 99°W:"

City: Tlalnepantla

Country: Mexico

Continent: North America

A. The U.S.-Mexico border.

B. You left Texas and are now in the Federal District of Mexico.

C. It is next to Mexico City, which is both politically and economically the most important city in Mexico.

D. The Sierra Madre del Sur Mountain Range.

an angle + its complement = 90 degrees