Space.com
Space.com: "Nasa Spin Offs: Bringing Space Down to Earth"
This article from January 26, 2005, offers a video and a list of many common items used daily that exist because of NASA innovations. These include Cat Scans and MRIs, more precise and safer breast imaging, artificial limbs using...
Illustrative Mathematics
Illustrative Mathematics: s.ic.4 the Marble Jar
Sometimes hotels, malls, banks, and other businesses will present a display of a large, clear container holding a large number of items and ask customers to estimate some aspect of the items in the container as a contest. In some cases,...
Illustrative Mathematics
Illustrative Mathematics: How Long?
Students will investigate the attribute of length by using a common measurement tool such as snap or unifix cubes to directly measure objects in the classroom. Materials needed include various items to measure, a large set of cubes such...
English Plus+
English Plus: Comparison Problems
A list of five common problems writers face when using comparisons. Each problem is explained, the wrong usage is demonstrated, and the correct usage is demonstrated.
American Association of Physics Teachers
Com Padre Digital Library: Open Source Physics: Vector Addition Model
This Java applet simulation explores vector addition of two vectors in two dimensions. Given the magnitude and direction, students must determine the vector components.
National Humanities Center
National Humanities Center: America in Class: America in the 1920s: Wets & Drys
The National Humanities Center presents collections of primary resources compatible with the Common Core State Standards - historical documents, literary texts, and works of art - thematically organized with notes and discussion...
Other
Grammar Book: Parentheses and Brackets
Included on this site are three rules for correct usage of parentheses, along with examples for all of the rules, and a quiz.
Wisc-Online
Wisc Online: Using Commas in a Series
In this learning module, students read about the rules for using commas to divide nouns, verbs, and adjectives when the words are written in a series. They insert commas in a practice exercise with 25 questions and receive immediate...