Forgot how to multiply matrices? Well, this app can help. It is like a gigantic, well-organized reference card for all things math. Customize your personal reference material by adding your own notes and build up a personalized list of...

Reinforce the concept of probability with a series of lessons highlighting the idea of likelihood, probability formulas, relative frequency, outcomes, and event predictions. The collection is made up of four lessons offering informative...

The probability of learning from this lesson is high! Learners calculate probabilities as numbers and as decimals. They see how to use a complement to find a probability and even try a simple geometric probability problem.

We know a coin should have a 50/50 chance of landing on tails. But what is the probability if it lands 43 out of 83 times? Use the lesson and accompanying resources to teach, practice, and assess about probability of events. 

Support math instruction at home with a helpful reference sheet designed for parents. Three pages cover the subject of addition with written details and labeled pictures. 

Are you looking for a comprehensive review that addresses the Common Core standards for geometry? This is it! Instruction and practice problems built specifically for standards are included. The material includes geometry topics from...

Design and build a rover ... then eat it? This activity has groups of two design and build Mars rovers. The teams determine what instruments they want to include with their rover and plan a budget. They calculate the cost of the body of...

Go from feet to inches to yards and back again with this notes and worksheet combo resource. Several pages of examples regarding unit conversion of the English system are given, followed by different pages of problems. There is a nice...

An informative video and handout provide the basic information needed to reflect any pre-image across either of the axes on the coordinate plane. The printed resource provides a preview of reflecting across lines other than an axis....

How many large and small watermelons did he sell? Just use the given information to write and solve a system of equations! The two videos accompanying the lesson explain the substitution method and then introduce problem solving. The...

Looking for a complete go-to guide for the standard form of conics? This five-page packet does a nice job of connecting conics to prior knowledge of functions and transformations. Adapt the resource as Algebra II lesson plan...

Give families the information needed to support their child in the mastering of subtracting numbers with a two page reference sheet offering detailed descriptions and labeled examples. 

Three Dog Night isn't just the name of a band; it is also the way an Australian tribe, who used dogs to stay warm, would describe the temperature on a cool evening. After reading about many different ways of measuring temperature, the...

Provides an introduction to probability. Includes examples, two videos, and links to additional resources, e.g., exercises to try. There are also problems and discussions of them in the Comments section.

This site from Bowling Green State University provides an introduction to probability. It discusses topics and activities such as interpreting odds, listing all possible outcomes (the sample space), basic probability rules, equally...

Explains, using examples, the difference between theoretical and experimental probability.

Dr. Math demonstrates how the birthday problem - what are the odds that two people in a room have the same birthday - works. Several links are available for extended investigations of the problem.

This is a resource for many topics in probability and statistics. Click on the topic of your choice for an explanation. The sites you will be linked to are quite extensive. A degree of higher-level math is necessary for understanding...

Over 60 links are provided here for topics in probability and statistics. Each link provides an in-depth discussion and example problems.

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

Explains what probability and outcomes are. Presents a formula for calculating probability for a simple dice or marble experiment. Introduces the concept of a probability line and discusses vocabulary used to talk about probability....

This site explains how to determine the chances of inheriting certain traits from our parents. It gives mathematical examples and exercises.

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...

The Quincunx is a fascinating probability machine that demonstrates how distribution works. This page has an interactive Quincunx where you can adjust how many rows there are for the balls to bounce down when dropped. A link takes you to...