Bulls and Cows
How quickly can you break the numeric code?
Factors and Codes (Episode 1)
Let’s use factors to encode and decode words.
Jotto
Who can guess the codeword first?
Shift Cipher (Codes Part 1)
Let’s encode and decode secret messages like Julius Caesar!
Pig Pen Cipher (Codes Part 2)
Let’s encode some secret messages with a cipher that was actually used during the American Civil War!
Path Cipher (Codes Part 4)
Now let’s try the Path Cipher – a cipher that mixes things up even more than Zig Zag did.
Zig Zag Cipher (Codes Part 3)
Let’s try a cipher that doesn’t substitute new letters or shapes. We just mix things up.
Factors and Codes: First Names (Episode 2)
Scrambled up somewhere in 161,000 is a first name. Can you find it!?