Cryptography on the TI-83 Graphing Calculator
High schoolers explore the history of cryptography. They assess function notation and transformation, matrix operations, and the fundamentals of modular arithmetic. Using graphing calculators, students develop their own encryption schemes.
9th - 12th Math 4 Views 5 Downloads
Solving Systems of Linear Equations
Solving systems of equations underpins much of advanced algebra, especially linear algebra. Developing an intuition for the kinds and descriptions of solutions is key for success in those later courses. This intuition is exactly what...
8th - 9th Math CCSS: Adaptable
Creating and Graphing Linear Equations in Two Variables
This detailed presentation starts with a review of using key components to graph a line. It then quickly moves into new territory of taking these important parts and teasing them out of a word problem. Special care is taken to discuss...
9th - 10th Math CCSS: Adaptable
Drawing a Line Tangent to a Circle
Explore lines tangent to a circle. In this math lesson, learners manipulate circles and lines on a TI calculator. They draw a circle and analyze perpendicular lines intersecting the circle in only one place. This activity works best if...
9th - 12th Math CCSS: Designed
Topic 4: Solving Systems of Linear Equations
Linear equations, coordinate planes, and systems of equations are covered in this extremely well-organized lesson. Composed of a series of mini-lessons, the instruction aims at explaining a different facet of solving systems of linear...
8th - 11th Math CCSS: Adaptable