Great explanation of how to conjugate the six irregular verbs in the present subjunctive: dar, estar, haber, ir, saber, and ser. A quiz at the end of the lesson tests the student's mastery of irregular conjugations in the present subjunctive.

Comprehensive lesson on how to conjugate verbs in the present subjunctive. Regular and stem-changing verbs are presented in this explanation. A quiz at the end of the lesson tests the student's mastery of verb conjugations in the present subjunctive.

Fantastic explanation of spelling changes in the Spanish language and their effect upon conjugations in the present subjunctive. Verb infinitives that end in -car, -gar, and -zar are among those that are considered. A quiz at the end of the lesson tests the student's mastery of verb conjugations in the present subjunctive that are altered by orthographical changes.

This Spanish tutorial on special uses of the definite article and exceptions to the rules for its normal usage features examples that illustrate its application to countries, titles and other special situations. Students test their mastery of this grammar principle with a quiz that follows the lesson.

Video describing 8 traits that successful people share. [7:17] Includes a short quiz following the video and a list of additional resources to explore.

Clay Shirky shows how social media services such as Facebook, Twitter and TXTs help citizens in repressive regimes to report on real news, thus changing the nature of politics. [15:49]

The value of money is determined by how much (or how little) of it is in circulation. But who makes that decision, and how does their choice affect the economy at large? Doug Levinson takes a trip into the United States Federal Reserve, examining how the people who work there aim to balance the value of the dollar to prevent inflation or deflation. [3:52]

Lexicographer and co-founder of new online dictionary Wordnik, Erin McKean, discusses the many ways today's print dictionary is positioned to change, transforming not just dictionaries, but how we interact with language itself. [15:15]

Video explains how mice, coyotes, and newts can show signs of evolution, even in a big city such as New York. [5:16] Includes a brief quiz and a list of additional resources to explore.

Video discusses the concept of evolution and the five processes that can cause it to happen. [5:24] Includes a brief quiz and a list of additional resources to explore.

In this video, James Balog describes how evidence for glaciers receding due to climate change can be seen through time-lapse photography. [19:20] Includes a brief quiz and a list of additional resources to explore.

Video explaining the process, risks, and benefits of radioactivity. [4:16] Followed by a short quiz and a list of additional resources to explore.

A brief video that describes the ways that people gather and process information to draw conclusions and make decisions. [5:33] Includes a short quiz and a list of additional resources to explore.

In this video, Sheena Iyengar examines the ideas that people have about choice and the ways that people feel about the choices they make. [24:09] Includes a brief quiz and a list of additional resources to explore.

Video that describes the types of codes that media and advertisements use to affect the way that people think, act, and feel. [6:00] Followed by a short quiz and a list of additional resources to explore.

A fun, playful introduction to using short, simple words when attempting to communicate a point of information. [2:02] W.9-10.2d lang/voc

In this video, Richard St. John explains that one of the keys to success is to work hard. [6:23] Includes a brief quiz and a list of additional resources to explore.

On this site from Aussie School House Teachers on the Web, an Australian K-6 teacher defines and illustrates more than 500 mathematical terms. It is a wonderful dictionary featuring clear and often interactive graphics, great colors, and lots of examples. It has been recently updated adding more terms, charts, and an app.

Printable, fifty-five page PDF file of a staff development manual containing strategies for teaching reading. Includes chapters on vocabulary, main ideas and supporting details, author's purpose, chronological order, plot and conflict resolution, cause and effect/ fact and opinion, compare and contrast, and organizing information. It is provided by a site designed to help prepare students for the fourth grade FCAT standardized reading test in Florida.

 Objective:  Students will create their own tesselations and research and formulate opinions on M.C Escher.Activity Type/Purpose:  Individual creations by students along with guided questions to facilitate connecting art and mathematicsAudience:  Geometry Classroom