This file includes the lab manual write-up for the Au nanosphere and nanorod photoabsorption and scattering Lab experiment for the 2nd year Experimental Contemporary Physics Lab Course. In addition, several handouts are provided along with some additional information for instructors. This work was supported in part by by NSF Awards: ECCS #0701703, DMR #0707740 & DMR #1105121. The experiment can readily be upgraded to an advanced lab by giving more responsibility to the students for lab setup (give them an optical breadboard and parts) and by asking for more in-depth analysis and questions which require more knowledge and experimental skills to answer.

This site, created by Michelle Lacey of Yale University, gives an explanation, a definition and an example of ANOVA for regression. Topics include analysis of variance calculations for simple and multiple regression, and F-statistics. This is a great overview of this topic.

In this lab, students use BLAST (Basic Local Alignment Search Tool) to compare several genes, and then use the information to construct a cladogram (also called a phylogenetic tree) to depict the evolutionary relatedness of species.

Includes information about the Academy of Natural Sciences educational programs: teacher resources, information for planning field trips to the museum and women in the natural sciences.

Pamela Peterson Drake, Professor of Finance at Florida Atlantic University, has prepared this site to ˘ď‹ďĐrefresh a student's accounting knowledge in preparation for further studies in finance.˘ď‹ď Topics on the site include the foundations of accounting, balance sheets, income statements, statements of cash flow, and additional disclosure. Each topic contains a thorough explanation with examples. At the end of the review, there is a quiz for visitors to test their knowledge of accounting basics. This is a useful resource for students in accounting services, and also for educators to incorporate into their classrooms with minimal or no adaptation to the review needed.

The American Mathematical Society (AMS) was founded in 1888 in order to further mathematical research and scholarship. Since that time, they have embarked on a number of outreach programs designed to educate the public about the importance of various mathematical endeavors. In the past several years, they have been developing the AMS Books Online website, and it's quite a resource. The works were all originally published by the AMS, and they can be browsed by author or subject. The subject headings include analysis, general interest, logic and foundations, and number theory. Users can download individual chapters from each book, and there are currently over thirty books available on the site. Visitors should make sure and check back, as there are plans to add books to the site periodically.

This site offers a set of interactive operational amplifiers (OAs) simulators with detailed lessons and basic circuit schematics (including theory). The Java applets provided include an inverting amplifier, summing amplifier, difference amplifier, differentiator, and integrator circuit amplifier.

The National Oceanic and Atmospheric Administration's (NOAA) polar-obriting satellites monitor the ozone levels around the globe. The ozone layer acts to protect life on Earth by blocking harmful ultraviolet rays from the sun. The "ozone hole" is a severe depletion of the ozone layer high above Antarctica. It is primarily caused by human-produced compounds that release chlorine and bromine gases in the stratosphere. NOAA scientists reported that the 2006 ozone hole in the polar region of the Southern Hemisphere broke records for area and depth. In this animation, the POES satellite sensors document the change in the ozone hole over Antarctica. In the critical layer of the atmosphere between 8 and 13 miles, nearly all of the ozone has been destroyed. However, large declines in the ozone hole, such as the one in 2006, are common year-to-year variations caused by Antarctic stratosphere weather fluctuations. Overall, the ozone hole is estimated to decrease annually very slowly in area by about 0.1 to 0.2 percent for the next 5 to 10 years.

In this activity, developed by the Lane Community College MAPS GIS Program, students are asked to investigate the distribution of Chinook salmon in the Columbia River basin using GIS technology and web-based maps. The objectives of the lesson are for students to be able to "use GIS to investigate historic changes in salmonid habitat, understand the factors affecting fish habitat, and improve map skills and problem solving." On the site, visitors will find a link to the student activity, some introductory material about GIS and the web-based viewer used in this lesson. The link to the actual data leads visitors to the wrong map, but you can access it by clicking here. This is an excellent activity for high school or early undergraduate students for hands-on work with GIS and population ecology.

Learn the relationship between perimeter and area. A shape will be automatically generated with the perimeter that you choose. Calculate the area of this shape. Area Explorer is one of the Interactivate assessment explorers.

This printable sheet is an excellent reference tool for geometry students. It details the formulae for finding the area, volume, and surface area for a variety of two- and three-dimensional shapes and includes an illustration of each that shows which measurements are important to the calculation. Presented are: areas of polygons (square, rectangle, parallelogram, trapezoid, circle, ellipse, triangles); volumes of polyhedra (cube, rectangular prism, irregular prism, cylinder, pyramid, cone, sphere, ellipsoid); and surface area (cube, prism, sphere).

Students play a generalized version of connect four, gaining the chance to place a piece on the board by answering arithmetic questions (addition, subtraction, multiplication, division). Parameters: time, difficulty level, types of questions. Arithmetic Four is one of the Interactivate assessment games.

In this experiment, we will, 1. understand how conductivity in semiconductors depends on carrier concentration and mobility, and how these depend on temperature, 2. distinguish between intrinsic and extrinsic temperature regimes and identify the applicable temperature range from an examination of measured data, 3. appreciate and utilize the advantages of the four-probe resistance measurement technique, 4. calculate the energy band gap for doped Si and pure Ge, 5. calculate the temperature dependent coefficient of the majority carriers, 6. through experimental realizations, appreciate a physical understanding of the band gap structure of semiconductors.

Enter data to create a bar graph, then change many settings for the graph's appearance.

Sort colored shapes into a bar graph. Practice sorting by shape or by color. Appropriate for elementary grades. Bar Graph Sorter is one of the Interactivate assessment explorers.

A unit that explains what ultrasound is, how it is produced, and why it is useful in medical imaging. A section on mathematics includes: defining, illustrating and using the following wave characteristics ˘ď‹ďÓ frequency, periods, wavelength, propagation speed, amplitude, and intensity; and applying the distance formula in a variety of car and sound situations.

Where previously in Part 1 we covered the basics of program design and analysis and the usefulness of design patterns, in this part in this series of articles we develop models for programs that are more general than source code. Why not use the source code directly? First, there are many different types of source code - assembly languages, C code, and so on - but we can use a single model to describe all of them. Second, once we have such a model, we can perform many useful analyzes on the model more easily than we could on the source code.

Students learn about material culture in this Moveable Museum lesson plan by taking a firsthand look at how culture influences the kinds of things we do. The 12-page PDF guide has educator materials including background information, teacher strategies, assessment guidelines, and detailed notes about the curriculum standards addressed. The Becoming a Cultural Researcher activity worksheet has a series of questions that prompts students to reflect on the material culture of daily activities, customs, or ceremonies. There is a kid-friendly glossary of related terms.

This site from the NASA Glenn Research Center offers a brief introduction to propulsion with many links to explore related concepts in depth. Topics include Newton's laws, thrust, aerodynamics, thermodynamics, basic math concepts, propulsion systems, and more. Users can navigate the site through links to other pages of interest, but there are also links to guided tours and an index at the bottom of the portal page.

This report describes the results of a major United States Geological Survey (USGS) geologic and oceanographic study of the Gulf of the Farallones, adjacent to the San Francisco Bay region. The first of its kind, the investigation was intended to establish a scientific database for an area of 3,400 square kilometers (1,000 square nautical miles) on the continental shelf for the purpose of evaluating and monitoring human impact on the marine environment. Topics include techniques and technology used in the investigation; oceanography and geology of the Gulf of the Farallones; biology and ecological niches; and issues of environmental management. There is also a list of supplemental reading materials and a glossary. The report is available in two versions: a shorter version for a general audience, and a more technical long version that is also available as a CD-ROM.