Databases
Library databases are online collections of information, organized for research. Databases contain articles, eBooks, images, maps, primary sources and more. Start your research with these general databases, available from any Denver Public Library or from home with a Denver Public Library Card.
Look for the video icon to see a Denver Public Library screencast.
Explora Middle School
Find information from magazines, newspapers and reference books on a variety of topics . Includes videos, primary sources, images and biographies.
Explora High School
Look up topic overviews, magazine and academic journal articles, facts and primary sources for research papers, class projects or homework. Get information from trustworthy sources that you can cite in your papers. Designed with students and educators in mind.
Learning Express Library
Basic Math, Algebra, Geometry, Calculus (and more) courses, tutorials and practice tests and courses, and recursos en español. Create a free account to get started and track your progress.
Tutor.com
Tutor.com provides online, on-demand academic tutoring, homework help, and test preparation to kindergarten through 12th grade students. Available 3-10pm, 7 days a week.
Other Resources
Khan Academy - Math
Videos on algebra, geometry, calculus and more.
SparkNotes Math Study Guides
Covers everything from Prealgebra to Calculus.
Math Teachers Circle
Collection of materials developed for Math Circle sessions for teachers and students.
Cool Math
Lessons, practice, games and more.
Numberphile
Videos about math applied to everyday life scenarios.
Metric Conversions
Convert measures such as temperature, length, area.
Unit Converters
The intent of this site is to provide a convenient means to convert between the various units of measurement within different systems, as well as to provide a basic understanding of the systems currently in use, and how they interact.
Online Conversion includes conversions for cooking and recipes.