Codes

Bulls and Cows

How quickly can you break the numeric code?

Gr 1-8

Shift Cipher (Codes Part 1)

Let’s encode and decode secret messages like Julius Caesar!

Gr 1-5

Jotto

Who can guess the codeword first?

Gr 1-5

Factors and Codes (Episode 1)

Let’s use factors to encode and decode words.

Gr 4

Pig Pen Cipher (Codes Part 2)

Let’s encode some secret messages with a cipher that was actually used during the American Civil War!

Gr 1, 2, 3, 4, 5, 6, 8

Zig Zag Cipher (Codes Part 3)

Let’s try a cipher that doesn’t substitute new letters or shapes. We just mix things up.

Gr 1-8

Path Cipher (Codes Part 4)

Now let’s try the Path Cipher – a cipher that mixes things up even more than Zig Zag did.

Gr 1-8

Factors and Codes: First Names (Episode 2)

Scrambled up somewhere in 161,000 is a first name. Can you find it!?

Gr 4