This is an online exercise in which chemistry learners answer a series of multiple choice questions about bonding. Topics addressed include ionic and covalent bonds, electronegativity, ions, valence electrons, resonance structure, and...

Technology has undoubtedly improved the lives of people around the world—but has it improved communication? Seventh graders read two informative passages about the rise of texting and emailing versus in-person conversations before...

Develop an understanding of the Map, Keep, and Combine operations. The lab leads the class through the exploration of three list operations. Each task contains a self-check to measure scholars' understanding of the operation in the...

In this online interactive reading comprehension worksheet, students respond to 25 multiple choice questions about Victor Hugo's Les Miserables. Students may submit their answers to be scored.

In this online interactive history quiz worksheet, learners respond to 45 multiple choice questions about the Scientific Revolution. Students may submit their answers to be scored.

For this online interactive history quiz worksheet, students respond to 50 multiple choice questions about the Interwar Years of 1919-1938. Students may submit their answers to be scored.

In this online interactive philosophy quiz worksheet, students respond to 25 multiple-choice questions about Martin Buber's I and Thou. Students may submit their answers to be scored.

Use mathematics to show your classes the power of a good model. Young mathematicians analyze the famous Ponzi pyramid scheme using an exponential pattern. They make conclusions on the reliability of the plan and why it is illegal. 

Commas are needed when starting or ending a letter/email, writing out dates, or writing out addresses.