Worksheet
Curated OER

You Know the Answer: Math Riddle

For Students 3rd - 6th
Although the riddle is an outdated political reference, this math challenge is a good practice in operations and domain-specific vocabulary. Learners complete 18 problems, using multiplication, division, subtraction, and addition. Some...
Worksheet
Curated OER

Math Vocabulary Secret Decoder Worksheet

For Students 3rd - 6th
In this math vocabulary worksheet, students match the letters to other letters to solve the vocabulary words. Students complete 15 math vocabulary words.
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 worksheet, students solve 10 multi-step problems using all math operations. Students start with the given number and perform each step in a flow chart format. Students take their total answer and decode the secret message.
Assessment
1
1
Balanced Assessment

Birthday Card

For Students 9th - 12th Standards
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...
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.
Lesson Plan
Computer Science Unplugged

Count the Dots – Binary Numbers

For Teachers 4th - 12th
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.
Worksheet
Curated OER

Goldentail's Rounding Railroad

For Students 5th - 6th
In this number puzzle activity, 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 in a box...
Worksheet
Curated OER

Mystery Code

For Students 4th - 5th
In this fractions secret code worksheet, learners solve 9 problems that require them to add and subtract using fractions. Students use their answers to decode a mystery message.
Worksheet
Curated OER

Multiplication Maze

For Students 2nd - 3rd
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.
Worksheet
Curated OER

Minnesota Muskrat's Worldwide Adventures

For Students 5th
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.