[Free Registration/Login may be required to access all resource tools.] Here you'll learn how to add and subtract polynomials, as well as learn about the different parts of a polynomial. Practice problems are also included.

The element lead is a neurotoxin that is particularly dangerous to young children. Among other uses, lead compounds were common paint additives until being phased out for safer titanium-based additives beginning in the 1960's. Lead...

Earthquake damage can be intensified in areas that are subject to soil liquefaction. For example, in these areas, soil movement may cause foundations to collapse, while structures in nearby areas built on more stable soil or bedrock may...

A comprehensive site that explores every part of dog ownership. Learn the anatomy of a dog, breeds of dogs, costs to take care of a dog, and how to train the new pet. In addition, there are online activities, a teacher's guide, and...

The primary purpose of this site is to present the text of the "Rubayyat of Omar Khayyam." In addition the site's author provides a description of Omar Khayyam's achievements in literature and mathematics. Site contains reference to...

Information and photos on this website about Nellie McClung's private life, public life and career provide excellent information about Nellie McClung--both for the educator and the learner. In addition, McClung's article "Reading...

This lesson encourages students to explore the phenomenon of identical twins, with emphasis on behavioral as well as genetic aspects. Teachers will appreciate extension activities, suggested readings, and links in addition to lesson plan...

In addition to arithmetic and geometric sequences, Fibonacci Numbers, and figurate numbers, there are countless interesting sequences that don't follow a similar, regular pattern. These include prime numbers, perfect numbers, the...

Features examples of how to add and subtract polynomials using various methods. These include the horizontal method, the vertical method, and algebra tiles.

This activity gives the user randomized questions to answer on arithmetic with whole numbers and integers.