Homework – Teens

Multi-Subject | Biography | College & Careers & Résumés | History | Literature | Math | News & Social Trends | Primary Sources | Research & Writing | Science | Study Skills | Technology | Research Databases

Multi-Subject Collections

  • Information Please – Encyclopedia, almanac, atlas and dictionary all in one.
  • Khan Academy – Video lectures with online practice for math, science, economics, arts, history, and computer science.
  • Discovery Education – Homework help resources, plus interactive games, videos, virtual labs and activities.
  • Library of Congress – Historical records and digitized books, photos, maps, manuscripts, film, and sound recordings.
  • BJ Pinchbeck’s Homework Helper – Over 700 top-notch websites for students and life-long learners.
  • Shmoop Learning Guides – Literature, math, science, history, social studies, art, music, and a few life skills. (En Espanol)
  • Diigo – Jumpstart researching any topic by using websites recommended by Colorado librarians. Type in a tag word like biology or economics and hit Enter. Some tags are two words and need to be typed inside quotes like “current events” or “primary sources.” Start a new search by clicking CoLibraries (top left) to clear the field and enter a different tag.

Study Skills

  • Study Tips – Tips on note-taking, test-taking, organizing, studying for tests, concentrating, and more.
  • Study Guides & Strategies – Learn to develop better listening, reading, note-taking, writing, and independent study skills.
  • Test Anxiety – Manage test anxiety to work for you, instead of against you.


  • Biography.com – Over 7,000 biographies of people past and present.
  • Nobel Prize – Biographies of Nobel Prize recipients and laureates.
  • Gallery of Achievers – Read about individuals who have shaped the 20th century by their accomplishments.
  • Miller Center – In-depth information on each U.S. President and administration and presidential speech archive.
  • More! – Spotlights historical figures and distinguished women.




  • Webmath – Step-by-step answers to hundreds of math questions and the option to type in your own problem.
  • Dr. Math – Q&A to commonly asked math questions. Browse the archive by level or search by keyword.
  • Purplemath – Need help with algebra? This is the place for illustrated step-by-step examples and videos.
  • More! – Links to librarian recommended math websites for students, teachers, and tutors.

News & Social Trends

  • PBS NewsHour Extra – World news and reports written for students.
  • The Guardian – Online newpaper covering American and international news.
  • Pew Research Center – Nonpartisan reports about the issues, attitudes and trends shaping America and the world.
  • ProCon.org – Today’s controversial issues presented in a balanced, comprehensive, straightforward pro-con format.
  • Channel One – News stories, hot issues, and student opinions.

Primary Sources

Research & Writing


  • Science.gov –  Search across 15 federal agencies with just one query for science articles, news, studies, data, and more.
  • Explain that Stuff – Easy to understand articles on how things work, cutting-edge science, cool gadgets, and computers.
  • Gene Ed – Explore cell biology, DNA, genes, chromosomes, heredity, genetic conditions, evolution, and biotechnology.
  • Classification of Animals – Amphibians, invertebrates, birds, mammals, reptiles and the conservation of animals.
  • The Physics Classroom – Physics concepts explained and quizzes to test your understanding.
  • Rader’s Chemistry – Basic information on matter, atoms, elements, the periodic table, reactions, and biochemistry.


  • Codeacademy – Learn javascript, html, CSS, how to make an interactive website, and Camore.
  • Hour of Code –  Intro designed to demystify code and show that anybody can learn the basics (and beyond.)
  • TED Talks Technology – Over 500 video talks on topics of technology.
  • CNN Tech News – News and video covers the internet, business and personal tech, video games, and more.

College & Careers & Résumés