[Free Registration/Login may be required to access all resource tools.] Sine of a sum or difference related to a set of cosine and sine functions. Here you'll learn to rewrite sine functions with addition or subtraction in their...

This problem provides learners with an opportunity to discover algebraic structure in a geometric context. They will divide up polygons into triangles. The will use the sum of the angles of 180 degrees for each triangle. Aligns with...

The goal of this task is to examine sums and products of rational and irrational numbers. One important property of rational numbers is that their decimals always terminate or repeat: using a slightly different formulation, a rational...

A complete reference guide to Riemann Sums. It provides definitions, examples, and an interactive activity that enhances further explanation. Includes links to related topics.

The applet examines the definition of the definite integral.

In this task, 8th graders have to reason with angles and angle measurements, including the sum of the angles in a triangle, to deduce information from a picture. Includes a GeoGebra worksheet that the teacher can use for demonstration...

This task, commentary, and solutions, were authored by Lacey Dixon and Jonathan Utegaard of The University of Arizona. The purpose of this task is to have students derive the formula for the sum of a specific finite geometric series....

A short interactive activity which allows you to visualize the sum of vectors.

Limit rules for sums, differences, products, quotients, powers, and roots of simpler functions.

This task challenges a student to demonstrate understanding of concepts involved in addition and subtraction.

This task challenges a student to demonstrate fluency in adding and subtracting whole numbers.

This Java applet simulation explores vector addition of two vectors in two dimensions. Given the magnitude and direction, students must determine the vector components.

Explore everything about triangles. Learn about the different types, important properties, and how to find its area and perimeter. Check out the solved examples and interactive questions for better understanding.

Based off of the hit television show NUMB3RS, this lesson introduces students to the concept of exponential growth, especially in comparison to linear growth. This is done in the context of weekly allowances, in which one group earns a...

Learn from other student's mistakes by reviewing the following Calculus topics: limits, the power rule, derivatives, the sum rule, the product rule, the quotient rule, the chain rule, implicit differentiation, indefinite integrals,...

Students will flip two cards over and determine the sum. Base ten blocks could be used for additional help.

This lesson focuses on the Triangle Inequality, when the sum of the lengths of any two sides of a triangle is greater than the length of the third. When this happens, the three sides cannot form a triangle.

Pythagoras' Theorem: In any right-angled triangle, the square of the length of the hypotenuse (the side that lies opposite the right angle) is equal to the sum of the squares of the other two sides. (A+B=C)

Many games use dice which are six-sided and fair (meaning each face on the die is equally likely to land face up). Many games also use the sum of two dice rolled at the same time to determine movement of game pieces. However, not all...

The purpose of this task is for students to find different pairs of numbers that sum to 4. Students will solve an everyday problem in their head and then model their solution using counters. They can represent their solutions using...

For this task, students are shown a unit circle in a plane and an angle measured from the x-axis. They must determine the coordinates of the line segment for the angle and answer a question about the sum of the coordinates. The purpose...

This is an introductory lesson on the concept of theme. Students choose two words that sum up the theme of the novel "So B. It" by Sarah Weeks. They then analyze a passage to find evidence of their choices and create a theme map. They...

You won the lottery! The lottery officials have given you a choice. You can either receive the $10 million now in one lump sum, or you can receive $1 million a year for the next 20 years. Now what do you do?

This lesson plan is designed for an Algebra II through Pre-Calculus classes and introduces the conic section- an ellipse. In this lesson plan students explore an ellipse, the set of points in a plane such that the sum of the distances...