Schedule: Wednesday, Thursday
& Friday
January 30, 31 & February 1
(Days 3, 4 & 5)
Task: Without communicating with the captain (teacher) of the island
which is diagonally opposite you, determine the coordinates where the two bridges are
located on this remote island.
Steps:
 | Download or print out the city grid worksheet
to help determine bridge coordinate locations. |
| You may not proceed until your captain (teacher) has shared with you the two routes
between the bridges on EACH of the two adjacent islands. |
| Based on the island assigned and revealed to you in Activity 2, mark the locations of
your two bridges (on your island) on the city grid worksheet. Identify the coordinates of
your two bridges such as F4, G6, or F7 for example. |
| Assuming all bridges joining islands are straight and only travel in an EAST-WEST or
NORTH-SOUTH direction, start with one pair of routes from one of your adjacent
neighbourhood islands. Identify which island the routes are from and mark and identify the
coordinates where at least the nearer bridge is located. |
| Beginning with the nearer bridge and the appropriate route, determine where the farthest
bridge must be located on this adjacent island following the path supplied by the captain
(teacher) of the island. Mark and determine the coordinate locations of the farther
bridge. |
| Since you have used the one path which travels from the nearer to the farther bridge,
use the second path from the farther bridge to see if you make the round-trip and return
to the nearer bridge. If you do, mark the two bridge locations and coordinates on the city
grid worksheet. If the trip does not bring you to the original bridge, compare your path
with your class-mates to see if you can agree on the proper routes between the bridges. |
| Repeat the same problem-solving process with the two paths and the information from your
other adjacent neighbouring island. |
| At this point you should be able to provide the coordinate locations of six bridges on
your two adjacent islands and your own. |
| With these six bridges, identified on the city grid worksheet, you should be able to
determine where the two remaining bridges must be on the diagonally opposite island. Mark
and record the coordinates of the two remaining bridges. |
| As the conclusion of this activity, you must e-mail the pirate captain (teacher) of the
diagonally opposite island. The e-mail address can be acquired by reviewing the Teams web page and copying the appropriate e-mail
address(es). |
