Editor'S Choice

Chaco Canyon

Chaco Canyon

Chaco Canyon is a famous archaeological area in the American Southwest. It is located in the region known as the Four Corners, where the states of Utah, Colorado, Arizona, and New Mexico meet. This region was historically occupied by Ancestral Puebloan people (better known as Anasazi) and is now part of the Chaco Culture National Historical Park.

Popular Sovereignty

Popular Sovereignty

The popular sovereignty principle is one of the underlying ideas of the United States Constitution, and it argues that the source of governmental power (sovereignty) lies with the people (popular). This tenet is based on the concept of the social contract, the idea that government should be for the benefit of its citizens.

How to Mix Acid and Water Safely

How to Mix Acid and Water Safely

When you mix acid with water, it's extremely important to add the acid to the water rather than the other way around. This is because acid and water react in a vigorous exothermic reaction, releasing heat, sometimes boiling the liquid. If you add acid to water, the water is unlikely to splash up, however, even if it did, it's less likely to cause injuries than if you make the mistake of adding water to acid.

Extended School Year Services (ESY) for Students with Special Needs

Extended School Year Services (ESY) for Students with Special Needs

ESY, or Extended School Year, is additional instructional support for students with disabilities, required by the Individuals with Disabilities Act. Why is ESY necessary? Some students with special needs are in jeopardy of not being able to retain the skills they have learned during the school year unless given additional support throughout the summer.

The Purpose of Building a Portfolio Assessment

The Purpose of Building a Portfolio Assessment

A portfolio assessment is a collection of student works that are associated with standards you are required to learn. This collection of work is often gathered over a long period of time to reflect what you have been taught as well as what you have learned. Each piece in the portfolio is selected because it is an authentic representation of what you have learned and is meant to demonstrate your current knowledge and skills.

Biography of Alvar Aalto

Biography of Alvar Aalto

Finnish architect Alvar Aalto (born February 3, 1898) became famous for both his modernist buildings and his furniture designs of bent plywood. His influence on American furniture-making continues to be seen in public buildings. Aalto's unique style grew out of a passion for painting and a fascination for the works of cubist artists Pablo Picasso and Georges Braque.