Students explore the needs of the homeless. In this philanthropy lesson student read chapter 1 of Trevor's Place and discuss facts regarding homelessness. Students write their impressions about homelessness in journals.

Second graders identify different polygons and their attributes. In this geometry lesson, 2nd graders get to know polygons by studying the vocabulary and finding polygons in their classroom. They create these shapes and then find their...

Learners use Venn diagrams in order to classify different objects and numbers. They then use "Venn Diagram Shape sorter" applets on the computer.

In this circle worksheet, students determine the number of degrees in a minor arc, find the area of a circle, find the area of a shaded region. This two-page worksheet contains six problems.

Get independent practice working with the intersection and union of sets. Each incorrect response gets a text box explanation and another try. Correct responses are confirmed.

Learn from this PDF file filled with definitions, examples, and venn diagrams all relating to sets and set notation.

This page provides a good explanation of unions of sets in mathematics. It discusses the union of disjoint sets and the probabilities of unions, incorporating probabilities of the two independent sets and their intersection. Discusses...

This page discusses sets and set theory in mathematics and probability, and it discusses the notation and properties of sets.

[Free Registration/Login may be required to access all resource tools.] This Concept teaches students how to find unions and intersections, as well as to calculate the probabilities of of these sets.

Introduces the basic terminology of Venn diagrams, and shows how to "populate" and read Venn diagrams.

Test your knowledge of sets, union, intersection, complements and Venn diagram by taking this practice test. Five levels are provided and it also tracks the number of correct and wrong answers.

This site has many links to examples of inverse functions, including intersections, inverse by reflection, and graphing inverse functions.

In this section, students will explore different methods for determining the probability of complex events and conditional probabilities (such as unions, intersections, and complements).

Checks understanding of the union, complement, and intersection of sets. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

This resource explains concepts related to set notation and gives examples for each.

Find a quick, concise explanation of operations on sets. Examples are given and clearly explained.

Telephones began to appear in North Carolina beginning in 1879, three years after Alexander Graham Bell's new invention had first been introduced at the Centennial Exposition in Philadelphia. On 10 March of that year, a telephone was...

A map from 1903 of Nevada showing counties and county seats, principal cities and towns, mountain ranges, and rivers. "Nevada, one of the most western of the States of the American Union, was formed from a portion of the territory...