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 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.
Other Online Resources
Khan Academy 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.
People's Math! Pre-algebra, Algebra I, Algebra II, Geometry and Word Problem lessons and free tutors online.
Rader’s NUMBERNUT Math basics explained in simple terms with great graphics.
Socratic Ask questions and watch videos on algebra, trigonometry, precalculus and more.
Cool Math Lessons, practice, games and more.
Numberphile Videos about math applied to everyday life scenarios.
Geometry Homework Help help with forumulas, proofs, triangles.
Metric Conversions convert measures such as temperature, length, area.
Online Conversion includes conversions for cooking and recipes.