Worksheet
Curated OER

Secret Code Spotlight

For Students 4th - 5th
In this secret math code learning exercise, students solve 14 equations and apply the color value for each line according to the key. Students write the final total and the secret coded letter from another key. Students read the message.
PPT
Curated OER

Secret Country Code Breaker

For Teachers 4th - 6th
Super cool and totally fun math awaits your class. They are the code breakers, and their job is to identify and locate the secret agent by breaking two different codes. They use all their skills to solve a series of double-digit addition...
Worksheet
Curated OER

Secret Code

For Students 3rd - 6th
In this multiplication activity, students complete multiplication problems containing numbers 1 through 12 and create a secret code at the end. Students complete 21 problems.
Worksheet
Curated OER

Secret Code

For Students 4th - 6th
In this division worksheet, students divide one and two digit numbers and come up with a secret code at the end. Students complete 11 division problems.
Worksheet
Doing Maths

Converting Metric Measurements Code-Breaker

For Students 3rd - 6th Standards
Can your scholars crack the code of this metric learning exercise? 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...
Worksheet
Curated OER

Flow Chart Secret Code: What Should You Call A Cow That Lives in Alaska?

For Students 4th - 5th
In this math code instructional activity, students solve 10 multi-step problems using all math operations. Kids start with the given number and perform each step in a flow chart format. Students take their total answer and decode the...
Lesson Plan
Curated OER

Create Your Own Coded Language

For Teachers 6th - 7th
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...
Worksheet
Curated OER

Secret Code Message 2

For Students K - 2nd
In this letter and number recognition instructional activity, students use a secret code box to help them spell 4 short Ee words. Students then draw pictures of the words.
Worksheet
Curated OER

Multiplying Decimals

For Students 4th - 5th
In this mathematics instructional activity, students find the answer to each problem by multiplying the decimals properly. Then they decipher the secret code using the letters and punctuation next to each answer.
Lesson Plan
Curated OER

Patterns of Communication

For Teachers 3rd - 5th
Scholars examine codes, symbols, and other forms of communication. They discuss Morse Code. Next, they are given messages written in code, which they must decipher. 
App
Little 10 Robot

Operation Math Code Squad

For Students 2nd - 6th Standards
Your mission, if you decide to accept it, is math skills practice. In this app, Mission Impossible meets basic number operation skills, and your students are the secret agents. 
Worksheet
Houghton Mifflin Harcourt

Challenge: Code Breaker

For Students 2nd - 4th Standards
Here is a code-breaker multiplication and division game which has learners find the missing letter in equations, then solve and use those letters to "break the code," which actually is the answer to a riddle. Make math fun with a...
Lesson Plan
Curated OER

Code Cracking

For Teachers 5th - 8th
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....
Lesson Plan
Curated OER

All Systems Go!

For Teachers 9th - 12th Standards
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...
Lesson Plan
Curated OER

Shh... It's a Secret!

For Teachers 5th
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.
Worksheet
Curated OER

Squigly's Secret Easter Code

For Students 6th - 8th
In this math worksheet, learners practice solving the code in order to decipher a secret message that is based upon the theme of Easter.
Worksheet
Curated OER

Add 2-Digit Numbers in Different Ways

For Students 2nd - 3rd
In this solving addition word problems activity, students use secret code cards and counters to problem solve. Students solve six problems.
Lesson Plan
Curated OER

A Secret Code

For Teachers 2nd - 3rd
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.
Worksheet
Curated OER

Secret Code

For Students 2nd - 3rd
In this multiplication puzzle worksheet, students find the products to 18 elementary multiplication problems. They solve the code using the letters assigned to each product. They read the secret message.
Worksheet
Curated OER

Secret Code Math

For Students 1st - 3rd
In this math worksheet, students solve the problems in the box grids with the operation of addition. The answers are used to create a secret code message.
Worksheet
Curated OER

Help the Ghost!

For Students 2nd - 3rd
In this secret code worksheet, students help a ghost fill in the blanks of a secret code from an alphabet code list to figure out what time it is.
Lesson Plan
Curated OER

Coded Messages

For Teachers 9th - 12th Standards
High schoolers solve matrices by multiplication. In this algebra lesson, students create coded messages and relate it to solving matrices. They multiply and find the inverse of matrices.
Worksheet
Curated OER

Mystery Code

For Students 4th - 5th
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.
Interactive
CK-12 Foundation

Addition and Multiplication Properties with Real Numbers: The Secret of Subtraction

For Students 6th - 8th Standards
An interactive boosts mathematicians' knowledge of subtracting integers using a horizontal number line by way of multiple-choice, true or false, and discussion questions. 

Other popular searches