Doing Maths
Converting Metric Measurements Code-Breaker
Can your scholars crack the code of this metric worksheet? To start, mathematicians must convert different units of measurement to the standard metric system form. Then, pupils plug in the corresponding letter to the correct answer to...
Curated OER
Crack The Code!! Oh NO!!!
In this cracking the code learning exercise, students realize that they must crack the code to find Keith the Kangaroo who has been hidden.
Scholastic
Cracking the Code
Can you figure out the code? Learners interpret ten number patterns and write the five numbers that come next. Next, they create their own number patterns based on their own codes.
Curated OER
The Da Vinci Code: Math Fun
A wonderful way to introduce or practice simple algebraic equations, where a variable is used in place of a number. Learners will work to crack the Da Vinci Code (as it is called) and replace letter variables with the "code" numbers to...
Curated OER
Coin Codes
Students work on cracking coin codes in honor of the Navajo Code Talkers Medal. Students review the handout on Crack the Code. Students race to see who can crack the code the fastest.
Curated OER
Crack the Code
Algebraic equations are the focus of this math presentation. Learners must find the missing variable in a variety of algebraic equations. The equations get more complex as the PowerPoint goes on. Very good practice for emerging algebraic...
101 Questions
Safe Cracking
How long would it take to break into a safe by testing every possible combination of codes? Pupils view a video clip of this happening and must determine the total amount of time before success. They measure how long each step takes, add...
CK-12 Foundation
Sum Notation and Properties of Sigma: Cracking the Code
Help your class develop an understanding of sigma notation. Pupils match the sigma notation with the sums. Using the expanded sums, learners evaluate the summations. The scholars move on to prove a property of sums.
Curated OER
Cracking the Code: Sequencing
You've just found a teaching template ready to use, all you have to do is personalize it to fit your class. It contains five number sequences or patterns for learners to complete, a place for your name, and a "prize." Tip: This template...
Curated OER
Create Your Own Coded Language
Students discover and identify cryptology used in everyday life. They decipher or crack codes. Students create their own secret writing or coded messages, and develop a dictionary of eponyms. They discuss how they have already...
Curated OER
All Systems Go!
Secret codes are so much fun, and a great way to practice nearly any math skill. Let your class become code breakers as they investigate inverse matrices. They use TI-Nspire technology to solve systems of equations which help them crack...
Curated OER
Deciphering Word Problems in Order to Write Equations
Help young mathematicians crack the code of word problems with this three-lesson series on problem solving. Walking students step-by-step through the process of identifying key information, creating algebraic equations, and finally...
Curated OER
Sea Ice: Cracking the Egg Code
Students study the egg code to learn about sea ice. For this sea ice lesson, students discuss and view a diagram to learn about the egg code when describing sea ice and its thickness. Students work in groups to play a game using the egg...
Curated OER
Code Cracking
There is nothing more engaging than cracking a secret code! Middle schoolers will replace letters with numbers to solve problems. This game will help them to begin to understand algebra questions by finding the value of missing numbers....
Curated OER
Cryptography and Cryptanalysis
In this cryptography and cryptanalysis worksheet, 8th graders read the explanation and example for codes and ciphers, then answer 2 questions and decipher 2 messages.
CK-12 Foundation
Values Written as Powers: Binary Numbers 9 to 16
Challenge mathematicians to crack the binary code with an interactive that focuses on numbers nine to 16. A table reveals exponential equations to aid in answering multiple-choice questions. A discussion question gauges comprehension.
Curated OER
Caesar Ciphers: An Introduction to Cryptography
Students encode and decode messages using a Caesar Cipher. In this encoding and decoding messages using a Caesar Cipher lesson, students discuss cryptography and how it is used. Students make a Caesar wheel to encode and decode...
Curated OER
Cracking the Code
Second graders explore patterns with colors, shapes, and numbers by completing a fun quiz, watching a video, creating their own secret patterns/codes and completing an online patterning game.
Curated OER
Shh... It's a Secret!
Fifth graders examine a series of rules for deciphering a code. They create their own secret message using a code after watching video. They access a web site to practice their decoding skills.
Curated OER
Mean Answers
In this finding the mean worksheet, learners find the mean of a group of numbers and then crack the letter code according to the answers. Students complete 9 problems.
Curated OER
Code Crackers
Young scholars work in teams creating and posing math rules and trying to guess them using a formula controlled worksheet they create with Excel. Student pairs take turns to see who can crack the other's code the fastest.
Curated OER
Number Patterns
These patterns are perfect for learners brand new to counting. They examine 9 number sequences, completing the last two numbers. The codes are easy to crack here- they count by 1, 2, and 3. For a bonus sequence, scholars count by 10....
Curated OER
Mathematical Treasure Hunt
The hunt is on! Young mathematicians follow clues and complete a series of ten math puzzles as they try to crack Dr. Integer's code and find the location of his hidden treasure.
Illustrative Mathematics
Transforming the Graph of a Function
Function notation is like a code waiting to be cracked. Learners take the graph of an unknown equation and manipulate it based on three different transformation changes of the function equation. The final step is to look at three points...