Curated OER
Secret Country Code Breaker
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...
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
Secret Code
In this multiplication worksheet, students complete multiplication problems containing numbers 1 through 12 and create a secret code at the end. Students complete 21 problems.
Curated OER
Secret Code
In this division activity, students divide one and two digit numbers and come up with a secret code at the end. Students complete 11 division problems.
Curated OER
Secret Agent Stan
Students answer time and money questions to solve a mystery. In this time and money lesson, students act as detectives to find Secret Agent Stan's identification number by answering questions from his logbook involving elapsed time and...
Curated OER
Secret Trail
In this addition learning exercise, learners find the secret trail on the grid from the starting number to the ending number by adding a trail of numbers. Students complete 12 problems.
Curated OER
Secret Trail
For this subtraction worksheet, students find the secret trail on the grid from the starting number to the ending number by subtracting a trail of numbers. Students complete 9 problems.
Curated OER
Unlocking the Secrets of Math: Simple Steps to Becoming a Better Mathematician
Help your students remember math tricks and rules. Review working with positive and negative numbers, decimals, and the order of operations in this engaging presentation.
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
Squigly's Secret Easter Code
In this math worksheet, students practice solving the code in order to decipher a secret message that is based upon the theme of Easter.
CK-12 Foundation
Properties of Real Number Addition: The Secret of Subtraction
Learners sometimes struggle to understand the concept of adding and subtracting integers. Help them see the why behind their answers using the interactive number line. The values change as individuals adjust the number line for each new...
CK-12 Foundation
Addition and Multiplication Properties with Real Numbers: The Secret of Subtraction
An interactive boosts mathematicians' knowledge of subtracting integers using a horizontal number line by way of multiple-choice, true or false, and discussion questions.
Little 10 Robot
Operation Math Code Squad
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.
Curated OER
Secret Agent Stan
Learners use a worksheet imbedded in this lesson plan that goes along with a detective story to give them practice calculating money.
Curated OER
Secrets of Lost Empires II -- Medieval Siege
Students design a working working model of a trebuchet and demonstrate the power of a Class 1 lever. They test their models by throwing grapes the greatest distance and raising and lowering bricks.
Curated OER
Humongous Vegetables
Humongous vegetables can inspire and awaken your mathematicians to the large math concepts in our Common Core standards. What is the secret to growing such gargantuan garden objects in Alaska? In the state that is closest to the North...
K-5 Math Teaching Resources
Blank Number Lines Template
It's no secret that number lines are one of the most useful tools for elementary math teachers. Offering a series of six separate number lines of differing scales, this versatile template can be used when teaching about anything from...
Curated OER
Mapping Meteorites
After reading an article, "Cameras Capture a 5-Second Fireball and Its Meteorite's Secrets," space science superstars use the triangulation method to determine the location of a distant object. In-class activities and homework are...
Curated OER
Math Vocabulary Secret Decoder Worksheet
In this math vocabulary worksheet, students match the letters to other letters to solve the vocabulary words. Students complete 15 math vocabulary words.
Shodor Education Foundation
Spy Game
Turn students into detectives as they decipher encrypted messages. Introduce your class to modular arithmetic and have a little fun encrypting and decoding secret messages. The activity does not hit many content standards, but would be...
Curated OER
The Code
In this the code worksheet, students study, review and calculate which of six codes is the correct one to enter a computer with a top secret scientific breakthrough in it.
Curated OER
Fifty Dollar Word$
In this proving words have an exact value of $50 worksheet, students use the "Secret Coded Letter Values" to encode each word and use any math operation in any order or combination. Students encode 5 answers.
Curated OER
Goldentail's Rounding Railroad
In this number puzzle worksheet, 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...
Bowland
German or English?
Sprechen sie Deutsch? Future cryptographers must decide whether an unknown text is written in English or in German. They use provided pie charts about the frequency of words in the English and German languages to help make their decisions.
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