Twelve chapters cover a multitude of math concepts found in the Common Core standards for sixth grade. Each title provides a brief explanation of what you will find inside the chapter—concepts from which you can click on and learn more...

Move on into trigonometry. An informative eBook takes the content of a College Algebra course and adds more relating to trigonometry and trigonometric functions. The content organization allows pupils to build upon their learning by...

This chemical reaction study guide provides a concept map, chapter goals, and answers to the chemical reactions chemistry chapter. A great review of the basic concepts from the detailed corresponding chapter.

This "Introduction to Chemistry" study guide about gases contains chapter goals, a concept map, chapter checklist, and web resources. Also find answers to the chapter review questions.

An excerpt from an earth science textbook. The chapter shown here covers concepts about how weather data is collected, displayed and how meteorologists forecast fronts and storms.