Summary & Discussion
Summary
Complete the sentences that summarize the text.
Secret messages were physically
hidden in various places,
including hairdos, clothes,
paintings, and
hidden in various places,
including hairdos, clothes,
paintings, and
shoes
.
Caesar’s cipher uses a(n)
and keeps the message secret.
shift
key
to shift the alphabetand keeps the message secret.
Various techniques using
internet
been developed.
computer
science andinternet
technology
havebeen developed.
Ancient
Ways
Ways
Recent
Techniques
Techniques
Encryption
Discussion
Think about how secrets will be hidden in the future and talk about it with your partner.
