learning materials

Dictionary.com

Dictionary.com provides several products for reliable, free access to millions of English definitions, synonyms, spelling, audio pronunciations, example sentences, translations, example sentences, word games and study games. They are available online or through mobile applications.
Here follows a short description of the main products:
Dictionary.com: provides reliable access to millions of English definitions and meanings, spelling, audio pronunciations, example sentences, and word origins.
Thesaurus.com: is a comprehensive and efficient language tool used by professionals, students, etc., to find the synonyms and antonyms.
Quotes: offers over 60,000 famous quotations, aphorisms, proverbs, and quips. The quotes can be organized by topic, author, and popularity,
Reference.com: provides free online encyclopedia and library information.
Translator: it provides translations in more than 50 languages (in the style of Google Translate) . The number of characters is limited for each translation.
Spanish: a recently-launched product for learning Spanish at many levels. Pronunciation is still done by an automated reader with English setting up.
Word of the Day: it sends a daily email with a word to learn and its definition, selected to enrich the lexicon of the users.
The Hot Word Blog: it examines the terms tossed about around the world and draws meaning from news-making events.
Games: designed to entertain and educate. There is a variety of them on the platform.

Tiching

Tiching is a free Spanish platform dedicated to education. It collects teaching resources and a social network has formed on top of this service. At present collected resources are more than 83000. The website is available in all official languages of Spain and in English. Tiching is aimed at the whole education community: teaching staff, students, families, publishers and anybody related in some way to the world of education.
Two search engines are provided. The internal one gives a number of options to refine researches, including language, skills, level of education, etc. The second search engine can be installed in external WordPress websites and blogs to perform searches in Tiching directly from there.
The social network has been designed for the education community and is formed by more than 25000 people collaborating from all over Spain.
There are many types of digital educational content in Tiching: activities tutorials, projects, teachers guides, etc. They are provided in many different formats such as video, text, image, interactive activity, etc.
Each content file contains:
• Basic information: title, description, image, tags, language, short URL, creator;
• Validation: it’s the internal validation process through which every resource passes when uploaded
• Thanks: it’s a feedback about the usefulness of a resource
• Save
• Comment
• Report

Udacity

Udacity is a digital university providing free courses mainly focusing on Mathematics Phisics and Computer Sciences. The courses are divided in three difficulty levels and are “open enrollment”, meaning that users can sign up at any time and complete the course at their own pace without homework or quiz deadlines. Users can enroll in as many classes as desired.
Udacity’s "hexamesters" are 7 weeks long. After each hexamester there is a one week break before the release of the next round of courses. Each class consists of 6 week-long units. The seventh week will have some bonus material and a final exam. Each unit is composed of many videos. Most are about 2 or 3 minutes long, and they are usually followed by a quiz or programming assignment. All videos in the courses have captions and each course also has a wiki that contains the course content in written form.
Completing a class, students get a certificate signed by the instructor. These certificates are recognized by major technology companies who are actively recruiting from the Udacity student body.
In addition to providing free higher education for students around the world, Udacity is also poised to connect students with job opportunities. Udacity's Career Placement Program connects students to the partner employers directly.

Table of contents: 

Intro to Computer Science
Building a Search Engine

Intro to Physics
Landmarks in Physics

Logic & Discrete Mathematics
Foundations of Computing

Web Application Engineering
How to Build a Blog

Programming Languages
Building a Web Browser

Artificial Intelligence
Programming a Robotic Car

Design of Computer Programs
Programming Principles

Intro to Statistics
Making Decisions based on Data

Algorithms
Crunching Social Networks

Applied Cryptography
Science of Secrets

Software Testing
How to Make Software Fail

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Sebastian Thrun, David Stavens and Mike Skolsky

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Shmoop

Shmoop is a free online platform containing over 1000 learning guides and test preparations written by educators and experts on a number of subjects (see table of content). It was created with the aim of improving learning tools by using an approach to education based on the keywords: relevant, real, approachable.
The learning guides are characterized by deep analysis of the topics, focusing questions, quotes and references to pop culture. Hypertext and multimedia play an important role in the guides as a way to provide students with an easier although richer learning possibility.
Shmoop holds itself to the highest academic standards and cites its sources so students borrowing ideas from it can (and indeed must) cite Shmoop in their work.
The content written primarily by Ph.D. and Masters students from top universities, like Stanford, Berkeley, Harvard, and Yale. Most of the content is free to be read without logging in, but with a free account other tools such as Clippings and Stickies become available.
Top rated contents are available in Spanish too.
Premium service gives access to the other materials and tools provided by the platform such as the premium test prep courses for the SAT, ACT, SAT Subject Tests, and AP exams and the possibility to create classrooms where to invite students and monitor their progress through detailed real-time reports.

Table of contents: 

For students:

Learning Guides
• Literature
• Poetry
• Shakespeare
• Mythology
• Bestsellers
• Music
• Pre-Algebra
• Algebra
• Biology
• US History
• Civics
• Economics
• Biography
• DMV

College Entrance
• PSAT
• SAT
• ACT
• SAT Subject Test: History
• SAT Subject Test: English Literature
• SAT Subject Test: Biology
• SAT Subject Test: Spanish
• SAT Subject Test: Spanish with Listening

AP Exams
• AP Art History
• AP Biology
• AP Calculus AB
• AP Calculus BC
• AP Chemistry
• AP English Language
• AP English Literature
• AP Environmental Science
• AP European History
• AP Human Geography
• AP Macroeconomics
• AP Microeconomics
• AP Physics
• AP Psychology
• AP Spanish Language
• AP Spanish Literature
• AP Statistics
• AP US Government
• AP US History
• AP World History

High School Exit
• GED
• CAHSEE

Independent School Entrance
• ISEE

For teachers:
• Teacher Resources
• SAT Teacher Guide
• Digital Literacy

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David Siminoff (founder and literature lead), Deb Tennen (Literature lead), Michelle Dohm (Math, Science, and Test Prep Lead)

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OpenCulture - The best free cultural & educational media on the web

OpenCulture - The best free cultural & educational media on the web
Open Culture brings together high-quality cultural & educational media for the worldwide lifelong learning community. OpenCulture mission is to centralize this content, curate it, and give all access to this high quality content whenever and wherever. Free audio books, free online courses, free movies, free language lessons, free ebooks and other enriching content. Open Culture was founded in 2006.

Table of contents: 

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Dan Colman, the lead editor, is the Director & Associate Dean of Stanford’s Continuing Studies Program. Mike Springer, a journalist living in Cambridge, Massachusetts, writes daily for Open Culture. Eric Oberle provides technical support for the site. Fred Hsu, the developer behind the Open Culture iPhone app

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