|
|
Decoding Nazi Secrets
|
|
|
|
Viewing Ideas
|
|
|
Before Watching
|
Codes and Ciphers
Codes and ciphers have specific meanings in the world of
military intelligence. Codes are symbols, letters, or
letter groups which represent whole words or concepts. For
example, a U.S. Navy code, KE3, represents: "This unit
is being harassed by gas." The relationship between a code and
its meaning is unchanging for the life of the code.
Ciphers are messages in which letters or symbols
replace real letters. Encrypting a cipher is done one letter
at a time using a cipher code.
|
-
Discuss the meanings of codes and ciphers using the information
presented in the box above.
-
To help students understand the use of passwords in their
current lives—for such things as locker locks, cell
phones, ATMs, and computers—have them do the
Password Protection
activity. Discuss what students consider when choosing a
password. To complete the activity, create small groups and
follow the instructions on the activity sheet. Compare student
answers to the master lists in
Activity Answer.
-
Have students discuss the kinds of people they would choose if
they were recruiting codebreakers. As they watch, have students
record the kind of members asked to join the Station X team and
the characteristics they possessed.
After Watching
-
Discuss with students the kind of qualities necessary for a team
to work as effectively as the one at Station X. Did students see
any of the characteristics they chose before watching? Did the
codebreakers include any characteristics students had not
considered?
|
|
