FreeRice is a product of the United Nations World Food Program and aims to raise awareness about hunger. By asking visitors simple trivia questions in English vocabulary and grammar, math, geography subjects, human anatomy and more, the site has raised enough funds to provide meals to over 10 million people. The site is nothing spectacular in terms of design, but given that it is first and foremost a charitable site, this shortcoming is certainly forgivable.

The Encyclopedia of Life is an online project chronicling every single named plant, animal, fungus and microorganism species on earth. While currently a work in progress, the goal is to create a detailed Web page for each species.The EOL favors substance over style; users won't find flashy animation or crazy layouts here. Instead, visitors get quality scientific information, presented in an easy-to-digest package that doesn't overwhelm the senses.

Zygote offers manipulable, three-dimensional, anatomical models of the male and female human bodies. This site is gorgeous. It's a singular page with either a female or male model, but those models are so beautifully rendered that users don't realize that they're only looking at a single page. Organs and entire systems jump off the screen when revealed. The attention to detail is impressive once users get passed the initial, clothed version of the models. (Because they will encounter only under-the-skin views of body parts, kids in grades six and up should be able zygote bodyto avoid inappropriate distractions while exploring this site.)

Impressive collection of classroom-ready, free digital resources

Bring traditional art education to life with fresh, interactive multimedia

Crowdsourcing is key to making history accessible, approachable

IXL has a whopping 2,000 math-practice modules that meet nearly all the Common Core math standards. You'll find Pre-K games covering the fundamentals through high school lessons and learning activities on geometry, how to graph equations, or the Pythagorean theorem, for example.

StoryJumper lets kids create and publish their own illustrated stories. Whether kids are beginning writers or seasoned pros, StoryJumper provides an outlet for them to use their imaginations as well as learn some real writing strategy if they're ready for it.

Coaster Crafter starts with a fun narrative about the owner of an amusement park and his daughter, who need help designing better roller coasters. They watch demonstrations of the simulator, which shows design flaws in several coasters. Then, in a series of lessons called Design Challenge, they correctly answer questions, which are clearly expressed with words and images, about relevant physics vocabulary.

NRICH is a website featuring activities to challenge and engage kids with math problems, games, and projects set in relevant contexts. The site is divided into four student homepages representing the "5 Key Stages," or grade bands within the British education system, and corresponding U.S. K-12 grade level info is available.

In Codecademy, older kids and teens write computer code. They set their own pace through lessons on every major modern programming language, including PHP, Javascript, Python, Ruby, HTML, and CSS.

Oh Noah! is a PBS-based website that offers students a multi-pronged approach to learning Spanish vocab. With its funny, story-based interface, kids are encouraged to take an easygoing, just-try-it approach to learning languages. Students who are learning Spanish, as well as Spanish speakers who are learning English (perfect for a multilingual classroom), could benefit.

Bugs and Numbers makes a bug's life for kids, as they explore math concepts such as matching, counting, sorting, sequencing, addition, subtraction, fractions, money, measurements, and telling time from the perspective of some realistic-looking critters. In three sections of six games each, bugs explore places like a diner, a junkyard, or a circus, and encounter skills in fitting backdrops. For fractions, ants deliver boxes of pizza to a picnic, and kids choose which fraction is represented in each box. Kids learn to count money in an arcade by dropping the correct amount into the machines. They earn bugs by completing each game and can zoom in to watch their bugs in action.

Teachers reviewing apps and how they connect to the curriculum

Retired Supreme Court Justice Sandra Day O'Connor founded iCivics to reverse a decline in civic knowledge and help kids better understand and respect the U.S. government. Sixteen games cover core topics like citizenship, rights, the court system, governance, freedom of speech, and constitutional law. You can sort by topic or time needed for gameplay.

The Design Squad Nation website complements the PBS Kids television show "Design Squad," in which teenagers compete to create the most novel solutions to engineering challenges. The competitive aspect of activities, along with video demonstration of the brainstorming and prototyping that go into design, make the website a great learning tool for kids.

The Learning Network is a blog-style website that features New York Times news content for teacher use. Great features include a word of the day, a fill-in-the-blanks news story activity, a visual thinking activity that poses an image with questions of inference and comprehension, and even the Six Questions, which regularly use embedded video and audio.

(iOS iPad) The Daily Newspaper Just for Kids! ***Best App for Teaching and Learning 2013 by AASL*** ***Featured by Apple in the Education section *** ***One of The Best News Sources for Kids - Common Sense Media*** *** kidSAFE® certified *** "Once in a while, an app comes along that makes me breathe a sigh of 'well, finally.' Such is the case with News-O-Matic, an ingenious app that condenses the daily news of the world and delivers it in perfectly kid-digestible form." - Cool Mom Tech

CNN Student News' main feature is the daily news report with broadcaster Carl Azuz, posted Monday through Friday, in which the news of the day is paired with background information that's important for understanding the issues.

"n2y is your home for effective symbol-supported tools and materials for your students with special needs. We develop the special education curriculum, lesson plans, and materials so you can spend your time teaching. We Create. You instruct."