Today is Arbor Day in the United States.

You might be interested in The Best Sites To Learn About Trees.

Mother’s Day is celebrated in the United States and in many other countries on the second Sunday of May.

I’ve just updated The Best Sites For Learning About Mother’s Day, including adding this infographic:

Why We Celebrate Mother’s Day infographic

Teaching Tolerance and The Smithsonian have developed eight cool-looking posters to celebrate Asian Pacific American Heritage Month, and they’ll send them to you for free!

You can order them here and learn more about the project here.

You might also be interested in The Best Sites For Asian Pacific American Heritage Month.

In case you didn’t know, it’s World Penguin Day on Thursday.

Check out The Best Sites For Learning About Penguins.

Here are two more additions to The Best Earth Day Sites:

The Environment’s New Math: How to Look at Earth Day, by the Numbers is from The Atlantic.

ELL Ideas: Learning About the Environment is from Colorin Colorado.

Here are even more additions to The Best Earth Day Sites:

Earth Day graphic produced by the Kars4Kids car donation program “Responsible vehicle recycling for future generations.

Though May Day is an ancient celebration, since the late nineteenth century it has primarily been recognized as a time to celebrate workers’ rights.

You can find out more information at The Best Resources For Learning About May Day.

Cinco de Mayo, May 5th, commemorates the defeat of the French by the Mexican Army in 1862. It’s a national holiday in Mexico, and is celebrated by Mexican immigrants and Mexican-Americans in the United States.

You might be interested in The Best Sites For Teaching & Learning About Cinco de Mayo.

Next week is National Park Week in the United States.

You might be interested in The Best Sites For Learning About Yosemite & Other U.S. National Parks.

And here’s a useful infographic:

Did You Know National Park Week Is April 20-28? infographic

Here are some new additions to The Best Earth Day Sites:

Earth Day 2013: Lesson Plans, Reading Lists and Classroom Ideas is from Edutopia.

Five-Minute Film Festival: Earth Day is also from Edutopia.

This sure is a very interesting interactive infographic:

Teachers needs around the world infographic by UNESCO Institute for statistics.

May is Asian Pacific American Heritage Month in the United States.

You might be interested in The Best Sites For Asian Pacific American Heritage Month.

I’ve recently updated The Best Earth Day Sites.

New suggestions are welcome…

With eight U.S. Senators unveiling their proposed immigration reform bill today, I’m adding these resources to The Best Resources About The New Push For Immigration Reform:

Key provisions expected in immigration legislation proposal is a very useful interactive infographic from The Washington Post.

The Senate immigration bill: Here’s what you need to know is also from The Washington Post.

The Weird Math of the Immigration Bill is from The Atlantic.

I’ve just updated The Best “Today In History” Sites.

Additional suggestions are always welcome.

The Titanic sank on this day 101 years ago.

You might be interested in The Best Sites For Learning About The Titanic.

I’m adding this infographic to The Best Sites For Learning About Mexico, Central & South America:

Rainforest Facts infographic

How Parents Around the World Describe Their Children, in Charts is a fascinating report of an the results from an international survey.

The info is fascinating, and the charts make the results very accessible to students and teachers alike.

The Atlantic allows the charts to be embedded in blogs and websites, which I’ve done below. But it’s worth reading their post for commentary.

I’m adding this to The Best Sites For Learning About The World’s Different Cultures.