Discover how powers of 10 can be used to estimate large numbers by watching this animated video. [4:15]

Practice rounding numbers to the nearest ten to estimate the sum.

This site presents the budgeting process through a series of steps. This first page describes the first step, creating a spending plan of estimated expenses. This page also has a link to a downloadable spending plan that requires Acrobat...

Homefires.com takes a look at the estimated costs to establish and maintain a homeschool.

Homefires.com takes a look at the estimated costs to establish and maintain a homeschool.

"Swazi" refers to the nation, tribe, or ethnic group, or an individual, "siSwati" to the language. SiSwati speakers are found in Swaziland, South Africa, and Mozambique. Within Swaziland, the population (the great majority of which is...

Earth Day grew out of the environmental movement in the late 1960s in response to a series of environmental disasters that took lives, marred natural beauty and threatened animal species. An estimated 20 million Americans participated in...

Learners investigate estimation tips and tricks. The resource consists of notes about the concept, examples, and some learning games and activities.

Read about contracts, warranties, credit, deceptive sales practices, cars, and housing--important topics for consumers. This website provides introductory material to each of the above topics and links for further information and research.

Pancakes anyone? Students explore estimation and measurement by learning how to make pancakes. A hands-on lesson designed for students in grades 3-5 where students are engage in hand-on experiences involving measuring volume, converting...

Examine how forensic anthropologists use data to investigate skeletal remains and use a data chart to estimate how tall a person might have been from the length of his or her bones.

This learning activity involves comparing actual weather to weather forecast estimates made by the weatherman and students.

Track an unseen target with an audio meter, and make accurate estimations of distance and depth by analyzing the signal strength and frequency. Construct an electroscope to detect electric charges.

Vancouver Marmots live only on Vancouver Island, British Columbia. They are the only endangered mammal in Canada, with a population estimated at only 100-200 individuals. Learn more about the Marmota vancouverensis, more commonly known...