Physics Central
Physics Central: Physics in the Living Room: Remote Control Tricks
An easy experiment through which students learn about light rays and the electromagnetic spectrum. Requires a TV, its remote, and a hand-held, flat mirror.
Language Guide
Language Guide: Preterite
This verb conjugation site is a great review of the formation of the forms of the regular preterite forms as well as those with spelling changes, stem-changes, and irregular forms. All sections have links to verb conjugation practice.
California Institute of Technology
Ipac: Iras Gallery
This site from IPAC is a series of images of various celestial objects and regions as viewed in infrared light. Each photo is accompanied by a caption.
Other
Spanish Programs: Learn Spanish: Free Online Spanish Lesson
This business offers a free online lesson that teaches the use of the two Spanish verb phrases "I want to go" and "I need to go." The lesson is a complete audio/visual tutorial with graphics that identify each word phrase.
Other
Infinitec: Total Resource Guide: Visual
A resource guide that is a great help to locating a full array of assistive products and services for persons with blindness or visual impairments.
Annenberg Foundation
Annenberg Classroom: Federal Taxation
Check out this interactive timeline documenting the history of federal taxation in the United States.
Study Languages
Study Spanish: Formal Commands
Excellent explanation of formal commands in Spanish that use the pronouns "usted" and "ustedes." Stem-changers and irregulars are included in this lesson. Ample examples illustrate the formation and use of formal commands. A quiz at the...
Study Languages
Study Spanish: Commands Review Part 1
Great review of regular and irregular command forms for the pronouns tu and usted. A quiz at the end of the lesson tests the student's mastery of these informal and formal command forms.
Library of Congress
Loc: America's Story: Tax Day (April 15, 1913)
How did this day come to be the national day for taxes being due? What is it for? To find out the answers to these and other questions, visit this site from the Library of Congress.
Other
Uncle Fed's Tax*board
Uncle Fed's Tax*Board is a good resource for tax information. On the site, you will find various tax forms, up-to-date tax news, tax help and guidelines, and online resources.
Bankrate
Bankrate.com: Taxes
This site explores the basics of taxes including finding your tax bracket, income tax calculator, earned income tax, state taxes, states with no income tax, and capital gains.
Language Guide
Language Guide: El Gerundio
A very brief explanation of how to form the present participle for ar/er/ir verbs and later form the present progressive tense with the participle.
Language Guide
Language Guide: El Participio Pasado
This grammar tutorial explains the formation of the past participle for ar/er/ir verbs as well as some irregular forms. A couple of examples are given to show the formation of the present perfect.
ClassFlow
Class Flow: Grammar Prefixes
[Free Registration/Login Required] This flipchart will help students to recognize the spelling and meaning of the prefixes; in, im, ir, il, pro, sus.
Other
Printable Reading and Phonics Games
This site includes 15 different phonics and reading games to download, laminate, and cut out. Includes games for phonics blends; "When two vowels go walking;" ee; ir, ur er; tion, etc.
Royal Society of Chemistry
Chemical Society: Iridium
A short summary of iridium's properties and main uses.
California Institute of Technology
Cal Tech: Two Micron All Sky Survey
Learn about the Two Micron All Sky Survey project, in which telescopes and observatories scan the sky for infrared radiation in order to learn more about the Milky Way galaxy. The infrared spectrum is described and its importance to...
University of California
Center for Science Education: Gallery
A gallery of astronomy images which depict galaxies, comets, the moon, planets, nebulae, supernovae as seen in various regions of the electromagnetic spectrum. Each image in the gallery is described. Fascinating!
Geography 4 kids
Geography4 kids.com: Interactions in the Atmosphere
The atmosphere interacts with ultraviolet light and incoming radiation as featured in this text.
Wolters Kluwer
Business Owner's Toolkit: Determing Which Payroll Taxes Apply to Your Employees
This resource contains pertinent information regarding withholding exemptions for employees and how the tax is withheld. Links are also provided for additional information on related subjects.
Quia
Quia: Prefix Skills
Learn prefix skills by taking the quiz using "Matching, Concentration, Flashcards, or Word Search."
Bankrate
Bankrate: Are Taxes Voluntary?
Provides a commentary on whether paying taxes is voluntary or required. Good information, especially for younger taxpayers. (2001)
University of Alberta
The University of Alberta: Infrared Spectroscopy
Complete this interactive tutorial and learn about interpreting the infrared spectrum ("I" "R") that provides information about the functional groups in a molecule. Included are 12 labs and a quiz.
Internal Revenue Service
Understanding Taxes: The Social Security Act of 1935
This very complete lesson plan explains the history of the Social Security Act of 1935, its history and importance to the elderly during the Great Depression, and its importance today. Everything necessary to teach the lesson plan and...
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