Eight Codes in Everyday Use
In this codes worksheet, students investigate eight codes used in everyday life. Fourteen activities are included as well as four miscellaneous exercise. This worksheet has great student interest.
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Using Matrix Operations for Encryption
Data encryption is an important security measure for sensitive data stored on computers. Pupils learn how to utilize matrices for creating code. They also get a great review of matrix multiplication, inverse matrices, and the identity...
11th - 12th Math CCSS: Designed
The Last Banana: A Thought Experiment in Probability
Your learners will be surprised by the thought-provoking, counterintuitive puzzle presented in this short video that models a fun, fictional situation in which a game is played with two number cubes to decide which of two people wins a...
4 mins 7th - 12th Math CCSS: Adaptable
Using the Zero Product Property to Solve Quadratic Functions
The last step of solving a quadratic factoring problem is often the stumbling block for algebra learners. Setting each factor equal to zero and solving the mini-equations isn't an intuitive process to learners new to the zero product...
4 mins 9th - 12th Math CCSS: Adaptable
Solve Linear Equations with Rational Numbers Using Decimal Form
After mastering the art of solving for x, introduce decimals in the same type of problem. Learners watch that when coefficients are decimals, they still follow the same inverse operations rules as non-decimal numbers.
4 mins 7th - 9th Math CCSS: Designed
Solve Linear Equations with Rational Numbers Using Mixed Numbers
Solving an equation with mixed numbers works just the same as solving without. Learners discover that the steps are the same, but they need to rewrite the mixed number first and follow fraction rules to solve. The video shows the...
6 mins 7th - 9th Math CCSS: Designed
Use Area of a Circle to Solve for Circumference
Common circumference problems have learners plug in the radius to solve. Not here! Encourage your learners to work backward through a problem when provided with the area to find the circumference with this last video of a series about...
4 mins 6th - 9th Math CCSS: Designed
Measure Angles in Standard Position Using the Coordinate Plane
The mechanics of measuring angles is a skill that is often taken for granted in an upper-level math class. This clear and detailed video presentation bridges the gap between identifying angles in geometry, and using their unit-circle...
5 mins 9th - 12th Math CCSS: Designed