CK-12 Foundation
Explicit Formulas: Tiles for Writing nth Term in a Sequence
Build an explicit formula using tiles. Pupils develop a tile representation of a term within a sequence given figures of previous terms. Using the diagrams, learners develop the explicit formula by recognizing the common difference and...
Shodor Education Foundation
Recursion
Perform the operation ... and then do it again. Scholars investigate recursive formulas by creating and graphing them. Using the interactive, pupils set the variable, determine the initial value, and type in a recursive formula.The...
CK-12 Foundation
Arithmetic Sequences: Paying of a Loan
How long does it take to pay off a loan? Pupils use a graph to model the sequence associated with paying off a loan. Using the graph, learners determine the initial value and the common difference of the arithmetic sequence. The learners...
CK-12 Foundation
Sequence: The Sequence Calculator
Work through a sequence in discovering number patterns. Using the interactive, pupils explore arithmetic and geometric sequences by setting the initial value and the common difference or ratio. Learners distinguish between the two types...
CK-12 Foundation
Solving Logarithmic Equations
Pupils follow a chain of reasoning in deconstructing a logarithmic equation step by step. Using their knowledge of logarithms, learners compare the solutions of logarithmic equations when the bases are changed.
National Constitution Center
Writing Rights: The Bill of Rights
Where did the cherished ideals enshrined in the Bill of Rights originate? While history gives the Founding Fathers much of the credit, laws in colonial America influenced the Bill of Rights. An interactive web-based activity allows...
Curated OER
Pulse-Width Modulation Signal Generator
In this electrical worksheet, students answer a series of 6 open-ended questions about pulse-width signal generators. This worksheet is printable and the answers are revealed online.
Curated OER
Estimating the Square- Root of Ten
In this algebra worksheet, students estimate the square root. They rewrite the root as an exponential function and solve. They use the correct function notation. There are 10 questions.
Curated OER
Reading Comprehension Quiz
In this reading comprehension quiz worksheet, students read 33 sentences with difficult vocabulary words, then select from 4 given answers which can be checked online.
Calculator Soup
Calculator Soup: Investment Calculator
Use the calculator to calculate the future value of an investment or the required variables necessary to meet your target future value. Required values you can calculate are initial investment amount, interest rate, number of years or...
Walter Fendt
Walter Fendt: Projectile Motion
A short interactive activity to show the movement of a projectile. You can change the values of the initial height, velocity, angle of inclination, the mass and the gravitational acceleration.