In this winter secret message puzzle worksheet, students solve the secret message by matching the pictures and letters in the code and writing the winter phrase.

Caesar ciphers hide secret missives. A simple interactive lets users encode and decode hidden messages. The cipher method here is the Caesar shift.

Students examine Morse code and how it is used.  In this secret codes lesson students decode messages, make their own codes and have other students crack the code.    

Students practice writing and decoding secret messages before discussing DNA and its role as a code for making proteins. They translate DNA into RNA and identify the sequence of amino acids to find a secret message. An interactive...

In this animals worksheet, students use the letter key to match up to other letters to solve the code. Students solve the code for 15 different animals.

For this December holiday worksheet, students use a letter key given at the top of the page to determine the "coded" words about holidays in December. A reference web site is given for additional activities.

In this decoding the message worksheet, students fill in the blanks using the letters that match each Christmas picture on the page. Students write 19 letters.

Bilateral suborbital hematoma? Call an audible? 404? Have fun with “the twittering or warbling of birds,” or as 14th century French speakers would say, have fun with “jargon.” Groups match specialized jargon with plain speech, decode...

Add a twist to the practice of simplifying expressions. The task asks scholars to decode a mathematical puzzle using their knowledge of expressions. If they are able to write and simplify the expression, the mathematics behind the puzzle...

Students discover coding in medieval cartoons. In this medieval mystery lesson, students view cartoons from history to see if they can identify the clues or solve the mystery. 

In this addition and subtraction worksheet, students solve for problems to complete the riddle about George Washington.  Students solve 20 two digit problems of addition and subtraction with some regrouping necessary.

Third graders solve a cryptogram by decoding a message written with wingdings.  In this decoding lesson, 3rd graders solve a message related to magnetism.  Students have notes about magnets once they've finished.

For this vowel and consonant puzzle worksheet, students decode the secret fall phrase by filling in the blanks with the letter that matches each picture from the box at the bottom of the page.

Students rewrite word problems using expressions and equations. In this algebra lesson, students use the correct variable to solve and write equations. They use the TI to graph their solution.

In this dental care secret message worksheet, students decode the message hidden in the tooth by following the arrows and recording the letters in the order they find them.

In this word puzzle instructional activity, students use the picture-letter code to decode the hidden Valentine's Day message. The message says, "Be My Valentine."

Slaves laboring in the cotton fields of the old South singing joyously may have convinced overseers that their workforce was happy and content, but in truth, these spirituals contained secret codes. After viewing a short video about...

Some money, a pocketknife, a ball of cord, and some flint and steel ... is that enough for a 14-year-old to survive alone in the wilderness? Scholars explore the topic of survival with the novel study for My Side of the Mountain....

Examine a coordinated geometry grid to decode the hidden message. Pupils write a coded message to their parents using letter coordinates from the grid.

In this number puzzle learning exercise, students solve 24 equations in each of two sets of multiplication and division problems. They circle each answer and round them to the nearest whole number. They use the secret code that is shown...

Students identify different uses and forms of coding information, such as memory chips, discuss and create list of everyday items in which memory devices are used, watch video, play Bits and Bytes Game, and use binary code to encode and...

Students exercise the skill of phoneme awareness with vocal gestures to create the sound of /v/. They review the way to print the letter "V," how to form the /v/ sound and create a hand gesture to help them recall the vocal gesture of...

Did you know you can send a message using only zeroes and ones? This interactive resource presents an introduction to binary numbers. Through code cards, pupils learn to convert binary numbers to decimal numbers.

In this volcano worksheet, students use the riddle key to decode the answer to a question about the largest volcano. Students write the letters in the blank and read the answer.