University of Nebraska
University of Nebraska: The Triple Product
This resource provides a description and formulas for finding the triple product.
Paul Dawkins
Paul's Online Notes: Logarithmic Functions Practice Problems
In this section we will discuss logarithm functions, evaluation of logarithms and their properties. We will discuss many of the basic manipulations of logarithms that commonly occur in Calculus (and higher) classes. Included is a...
Other
Cre: Ecuaciones Cuadraticas
In Spanish. Clear step by step directions, explanations and example problems of quadratic equations. Explains factorization, the quadratic formula, and completing the square.
Illustrative Mathematics
Illustrative Mathematics: F If.3 Snake on a Plane
In a video game called Snake, a player moves a snake through a square region in the plane, trying to eat the white pellets that appear. This task has young scholars approach a function via both a recursive and an algebraic definition, in...
Khan Academy
Khan Academy: Points Inside/outside/on a Circle
Given the center and radius of a circle, determine if a point is inside of the circle, on the circle, or outside of the circle. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or...
Illustrative Mathematics
Illustrative Mathematics: G Mg Toilet Roll
Picture a roll of toilet paper; assume that the paper in the roll is very tightly rolled. Assuming that the paper in the roll is very thin, find a relationship between the thickness of the paper, the inner and outer radii of the roll,...
Khan Academy
Khan Academy: Interpreting Linear Formulas Word Problems
In this exercise, students practice identifying slope of a line. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
University of Cambridge
University of Cambridge: Nrich: Augustus' Age
Use a simple formula to help you figure out the age of the mathematician Augustus de Morgan. When done, check your results against the solution.
Math2
Math2.org: Polynomial Identities
This resource provides a list of polynomial identities, including formulas for squaring a binomial, FOILing a trinomial, factoring a difference of two squares, factoring a sum or difference of two cubes, and the Quadratic Formula.
Oswego City School District
Regents Exam Prep Center: Permutations
Learn and practice permutations and finding probabilities. Teacher resource page included.
Oswego City School District
Regents Exam Prep Center: Literal Equations
Learn how to solve equations that contain more than one variable.
Oswego City School District
Regents Exam Prep Center: Parallel and Perpendicular Lines
This site displays formulas and examples, pertaining to slope, for parallel and perpendicular lines.
Khan Academy
Khan Academy: Graphs of Nonlinear Piecewise Functions
Given the graph of a nonlinear piecewise function, find its formula. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Evaluate Functions
Evaluate functions for specific inputs given the formula of the function. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
Oswego City School District
Regents Exam Prep Center: Pythagorean Theorem
Who was Pythagoras and what is his theorem? Explore this concept and its relationship to the measurement of a right triangle in this test prep lesson plan. The lesson includes an interactive worksheet where learners discover the answers...
Cut the Knot
Cut the Knot!: What Is a Number?
Casual and clear but definitely upper-level discussion of rational, real, imaginary, and several other types of numbers. Links to related sites.
University of Utah
University of Utah: A Simple Example Logarithms
This site from the University of Utah provides a good simple base conversion page.
Khan Academy
Khan Academy: Number of Solutions of Quadratic Equations
Analyze quadratic equations in order to determine how many different real number solutions they have. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.