Drivers may wonder whether the most recent spike in gasoline prices is temporary or will be longer lasting. Will prices eventually decline—maybe even to below $3 per gallon? Or is it time for drivers to alter their driving habits, maybe by buying a hybrid car? Be sure to read the September 2012 issue for a discussion of factors that might influence that decision.

Highland Mary, CO Mining Town. Western Mining History presents a brief summary of Colorado's Historical Mining Towns with links to additional Colorado resources for a mining town database and mines by county. Western Mining History is an historical site that provides information on mining, mining towns, the gold and silver rush, and Photos and maps of the western United States. This is a strong primary source resource that can be used for a variety of class research projects. Consider becoming a member or making a donation to help further the work of the site.

This Western Mining History database uses Mineral Resources Data System to list known Colorado historical mines by county. Each county site has links to the known mines within its borders. Some are known and named, others are unnamed. Mines should be assumed to be on private property unless other research is conducted. Data provided for each mine site include: Name, State, County, Elevation, Primary Mineral Mined, Latitude and Longitude and a link to Google Maps. Photos are provided where available. Additional information for some Mines are satellite photos, and ownership, business and historical records. Mining History is an historical site that provides information on mining, mining towns, the gold and silver rush, and Photos and maps of the western United States. This is a great database for student historical research or data and statistics classes. Consider becoming a member or making a donation to help further the work of the site.

This URL links to the main History Colorado site where users can directly search for historical resources off this premiere Colorado OER educational site.

Introduction to the history of Rapa Nui and Polynesia (~7,300 words) for middle and high school students.

Short history of towns and locations in the Grand Valley. Links to more detailed information.

Western Mining History presents a short tour of miner's cabin's from the frontier west during the gold and silver rush. The resources shows Photos of miner's cabins and living conditions. Western Mining History is an historical site that provides databases, information on mining, mining towns, gold and Photos and maps of the western United States. Consider becoming a member or making a donation to help further the work of the site.

This resource consists of 7 prehistoric hominid descriptions along with modern man in the form of informational cards, skull illustration and name. They can be used for matching and categorizing.

Hominid Skull Set. This is not an Educational Kit, but rather a collection of Hominid skulls that can be checked out in person for classroom use. Teachers should feel free to combine the artifacts with lessons of their choice or creation. The Natural Sciences Education & Outreach Center collaborates with CSU faculty, National Parks and citizen science programs to translate their current scientific research into unique STEM experiences for students in the form of Educational Kits that can be checked out. Each kit contains just about all of the materials needed (minus common things like water and paper towels) to explore some really interesting scientific research topics.The kits are available for teachers and informal educators in Colorado to check out by submitting a local pickup form at the linked website. This collection is provided free for educational use. This collection is not availably for delivery. This Kit is available in Spanish.

This video segment is adapted from Building Big, a PBS series hosted by David Macaulay. It explores Hoover Dam's hydroelectric capabilities by explaining how it is able to harness the potential energy stored in the reservoir and convert it to electricity. It also discusses environmental impacts of the dam and others like it.

An interactive applet and associated web page that show the definition of a horizontal line in coordinate geometry. The applet has two points that the user can drag which define a line. The line flagged when it is horizontal (slope=0) and the equation of the line is shown. The grid, details and coordinates can be turned on and off. The applet can be printed exactly as it appears on the screen to make handouts. The web page has a discussion on how to test for horizontal, the line equation and has links to other pages relating to coordinate geometry. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.

In this module we will introduce you to concepts such as food security, food insecurity, nutrition security, livelihood security, food policies and programmes and the role of stakeholders and facilitators. You will gain the knowledge and skills required to gather information on many different levels, from the macro to the micro level. You will also, in time, become equipped to analyse community and household needs, understand the implications of policies and strategies for communities and households. You will eventually be able to report on the community situation regarding food insecurity and related issues and to advocate and request assistance for intervention.

This unit we focus on household food security and what the effect of food insecurity will be on households. These days the concepts nutrition, nutrition security, livelihoods and household livelihood security are also used when the bigger picture of household food security is discussed.

In this module your main task is to plan and carry out a set of activities with selected households in the community to help them gain a good understanding of their current and possible future use of natural resources in their area.

This animated video discusses how climate change is altering the environment and increasing disease risk from air pollution, spread of disease vectors, increased high temperatures, violent storms and flooding. Ideas for community preparedness are offered.

GDP is a useful measure of the health of the economy, and it’s among the most important and widely reported economic data. However, the current “textbook treatment” of how international trade is measured as part of GDP can lead people to misunderstand the role trade plays in the economy. The September 2018 issue of Page One Economics intends to correct misconceptions and provide clear instruction on how imports affect GDP.

When regulating pollutants, is it more important to consider the science or the economics of the environment? Using the booming shale gas and oil industry as a case study, find out in the March 2019 Issue of Page One Economics how an understanding of the STEM fields and economics can be combined to create environmental policies that balance firm profits with environmental health.

This short video, is the fifth in the National Academies Climate Change, Lines of Evidence series. It focuses on greenhouse gases, climate forcing (natural and human-caused), and global energy balance.

The purpose of this study was to examine the comparative influence of college administrator credential programs, on-the-job experiences, and the ISLLC Standards in the development of leadership expertise among urban public school principals. An exploratory, ex-post-facto research design used both quantitative and qualitative approaches. A survey of 101 randomly selected urban school principals from 25 of America’s largest metropolitan school districts was given, followed by telephone interviews with a subset of 20 randomly selected survey participants. Data were analyzed through the use of inferential and descriptive statistics and descriptive narratives. On-the-job experiences were significantly more important in developing leadership expertise than college credential programs on each of 41 ISLLC-based learning tasks. However, college credential programs are also important sources of leadership development. Several significant differences were found between comparative ratings of learning tasks by subgroups (experience, gender, school type). Respondents ranked 78% of the ISLLC Standards as very important to the field of school leadership. Interview subjects expressed concern about lack of preparation in budgeting, data analysis, teacher evaluation, and change management.