A number of communities (campuses, towns, cities, etc.) around the world have proposed and enacted plastic water bottle bans in some form.

In 2013 the small town of Concord, Massachusetts (population approximately 19,000) became the first town or city in the United States to ban the sale of single-serving Polyethylene terephthalate (PET) bottles less than or equal to 1 liter (34 ounces) containing water which is non-sparkling and non-flavored (in other words, plain water)[1]. The sale of water in bottles of any size made of other types of plastic or other materials, as well as PET bottles of flavored or sparkling water, soda, tea, juices, and other non-plain water beverages, regardless of size, is allowed[2]. See attached FAQ document.

Experiment with rocket designs and a PVC launcher to discover how high—and how far—you can make your rockets go.

Here’s a new “spin” on an old toy. In this modern adaptation of a classic toy—the spool racer—a plastic water bottle is propelled by energy stored in a wound-up rubber band.

Learn how African-American troops fought for the north in this excerpt from The Civil War: A Film by Ken Burns. Lincoln authorizes the first African-American troops. The 54th Massachusetts regiment, under Robert Gould Shaw, attacks Fort Wagner, South Carolina.

When seen at night, the moon seems to shine brightly in the sky. What we actually see is the reflection of the sun's light on the moon. The moon gets its light from the sun, just like we do on Earth.

A Powerpoint lesson where students study bouncy balls. (April Mitchell)

Aperçu : Bienvenue dans une autre leçon de codage Make Stuff Move. Cette deuxième leçon va vous montrer comment déplacer un servo à l'aide du bouton sur votre bouclier d'animation.

This resource includes the sheet music, activity instructions, and audio files for "Bow Belinda" from the Elementary Songbook.

This resource is a free, downloadable audio file of short music clips to use for instruction.

This resource is a free, downloadable audio file of short music clips to use for instruction.

This resource includes the sheet music, activity instructions, and audio files for "Bow, Wow, Wow" from the Elementary Songbook.

This resource is a free, downloadable audio file of short music clips to use for instruction.

This resource is a free, downloadable audio file of short music clips to use for instruction.

This website includes text, images, and video instruction in the principles of backwards design. The material provides an overview of these principles as well as different stages to help teachers work through in their plans and templates they can use.

In this lesson plan, educators will learn to teach their students basic bowling skills using video equipment. 

The purpose of this game is to help students think flexibly about numbers and operations and to record multiple operations using proper notation.

This problem requires a sound understanding of the fraction relationship between part and whole and can be used for finding fractions of numbers and quantities. Students are given the fractional amount of apples in a fruit bowl and the specific number of other fruit in the bowl in order to figure out how many apples are in the bowl. The Teachers' Notes page includes suggestions for implementation, discussion questions, ideas for extension, a link to a worksheet which provides student support, and a downloadable pdf of the puzzle.

Open Middle provides math problems that have a closed beginning, a closed end, and an open middle. This means that there are multiple ways to approach and ultimately solve the problems. Open middle problems generally require a higher Depth of Knowledge than most problems that assess procedural and conceptual understanding.

This student interactive, from Illuminations, allows students to create a customized box plot as well as display pre-set box plots.