Computer Science Unplugged
Count the Dots – Binary Numbers
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.
Curated OER
Volcano
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.
MakingMusicFun.net
CodeBreaker! | Music Theory Worksheet - Treble Clef Note Names
In this music notes learning exercise, students decode a message with the letter names of notes. They analyze the eight labeled notes on the treble clef and write the letter names of the notes underneath them. A secret message will be...
Curated OER
Multiplication Maze
In this multiplication maze instructional activity, students solve 6 multiplication numbers as they work their way through a maze gathering clues to decode a secret message.
Curated OER
Halloween Decoding Puzzle
In this Halloween worksheet, students use the pictures to decode the words about Halloween. Students decode 3 words about Halloween.
Curated OER
Decoding DNA
Third graders complete their KWL charts from the first lesson of the unit as a review for the summative. Then they decode a secret message using the four basic components of DNA, adenine, cytosine, guanine and thymine.
Curated OER
Algebra: Introduction to Algebraic Expressions
Seventh graders, in an introductory algebra class, code and decode messages using substitution ciphers. Role-playing as mathematicians, they work in groups to decipher several messages, one of which translates to "math is awesome."
Curated OER
Minnesota Muskrat's Worldwide Adventures
In this long division worksheet, 5th graders solve problems to decode a secret message. Students solve for 60 problems with some remainders and two digit quotients.
Curated OER
Cryptography Implementation
Students explore cryptology. They write a research paper on cryptography. Using linear equations, students invent a code and write a secret message. Students complete cryptography puzzles.
Curated OER
Clock Arithmetic and Cryptography
Students perform basic operations in modular (clock) arithmetic. Students encode and decode messages using shift and affine ciphers. Students apply their multiplication, division, addition, and subtraction skills.
Curated OER
The Rotating Grille
Students experience the geometric method of coding by actual construction and use of a rotating grille. Students use rotations and reflections to code and decode messages. Students explore nomenclature and symmetry.
Curated OER
Spring Picture Cryptogram Puzzle
In this early childhood cryptogram activity, students decode and solve a spring secret message by filling in the blanks with the letter that matches each picture from the box at the bottom of the page.
Curated OER
An Olympics Riddle
In this Olympic sports instructional activity, students unscramble 24 names of summer and winter Olympic sports and write them on the lines. Students use their answers to decode a riddle.
Curated OER
Ancient Egypt Cryptogram
In this ancient Egypt activity, students unscramble 9 words pertaining to Egyptian history. Students use the numbered boxes to decode a secret answer to a riddle. There is no word bank.
Curated OER
Code Fun
In this code fun activity worksheet, students decode a secret message using the symbol code key provided at the bottom of the worksheet.
Curated OER
Mystery Code
In this fractions secret code worksheet, students solve 9 problems that require them to add and subtract using fractions. Students use their answers to decode a mystery message.
Curated OER
Summer Cryptogram Puzzle
In this summer cryptogram puzzle, students decode a secret summer phrase, filling in blanks with letters that match pictures. A reference web site is given for additional resources.
Computer Science Unplugged
You Can Say That Again! – Text Compression
Compression, the process computers use to store information, is the focus of a resource that presents two different stories that describe the concept of compression by eliminating repeated letters and replacing them with a...
Curated OER
Fraction Message
Students practice identifying fractional parts represented in pictures and phrases. In this fraction lesson, students determine the proportion represented by common time and money phrases such as "3 hours in a day". Students match their...
Curated OER
/e/ It Must be Old
First graders discover that written language is a secret code that may be broken if they learn to move their mouths in different ways when they say different letters. They compare the sound a creaky door makes to the /e/ sound. They try...
Curated OER
Give the Dog a Bone
Students listen as the /sh/ sound is modeled and discover the sound as it appears in the words "sheep", "fish", and "ship". They then play a secret game with a magic code placing the correct dog with its bone. Once all the words are...
Curated OER
Icky Sticky!
Students recognize the short vowel i in written and spoken language. Through matching activities, they discriminate the short vowel /i/ from other vowel sounds. Students associate the phoneme with its letter representation and identify...
Super Duper Publications
WH Question Cards - Pro: Who, What, When, Where, Why
Do you have kids on your caseload with wh questions goals, that need extra practice comprehending and asking who, what, when, where, and why questions? Then this clever app is designed for you!
Curated OER
Detective Digis and the Computer Caper
Mathematicians participate in an hands-on activity to investigate the binary number system and write messages in binary code and have classmates decipher the messages. A said video on the topic does not seem to be available, but the...