Educator Resources

RefSeek's guide to the 25 best sites for free teacher resources. Listed sites offer lessons, classroom activities, collaboration tools, and printouts for free though most require account registration.

    Adolescent literacy resources for parents and educators of kids in grades 4-12.
  • Better Lesson
    Free lesson plans for critical subjects from geometry and literature to earth science and writing.
  • CK-12
    Free online textbooks and teaching tools for K-12 students.
  • Ed Helper
    Teacher resources organized by subject matter and grade. - Grade: K-9
  • EdShelf
    Socially-curated directory of education websites, mobile apps, and desktop programs. - Grade: K-12
  • EDSITEment
    Information on the humanities for parents, students, and teachers. - Grade: K-12
  • Education World
    Offers lesson plans, educator profiles, daily columns, and more. - Grade: K-12
  • Edulastic
    Standards-aligned assessments, assignments, and progress monitoring.
  • Edutopia
    Parenting tips and advice as well as educational activities and ideas. - Grade: K-12
  • Exploratorium
    Exploring the world through science, art, and human perception.
  • Freckle
    Differentiated instruction across math, ELA, social studies and science. - Grades: K-9
  • Google Classroom
    Free platform for creating, distributing, and grading assignments with easy file sharing.
  • HippoCampus
    Multimedia lessons and course materials to assist students in self-study.
  • Inside Mathematics
    Exceptional resource providing video lessons and worksheets aligned to the Common Core standards.
  • Khan Academy Kids
    Free lessons by grade, printables, weekly planner, and remote learning support.
  • KidsKonnect
    Library of high-quality, printable worksheets for teachers and homeschoolers.
  • Learning A-Z (Subscription)
    Source for a broad selection of professional online curriculum materials. - Grade: K-6
  • National Center for Families Learning
    Free resources to meet different literacy and education challenges.
  • National Geographic: Resource Library
    Exceptional collection of educational material. Filter by topic, format, or grade.
  • Open Educational Resources
    Network where teachers and professors can access and share course materials.
  • OpenLearn
    Free access to Open University course materials.
  • PBS Learning Media
    High quality classroom materials for preK-12 education. - Grade: K-12
  • PhET
    Free, interactive, research-based science and mathematics simulations.
  • Reading Rockets
    Research-based strategies for helping young children become strong, confident readers.
  • ReadWriteThink
    Lesson plans, student interactives, and professional development resources. - Grade: K-12
  • Scholastic For Teachers
    Lesson plans, student activities, and video clips for teachers. - Grade: K-12
  • Seesaw
    Well-designed classroom management platform. Interactive activities and background assessments.
  • Smithsonian Science Education Center
    K-12 resources including learning modules, STEM curriculum, and professional development resources.
  • Super Teacher Worksheets
    Printable worksheets and activities for teachers, parents, tutors, and homeschool families. - Grade: K-6
  • SuperSTAAR
    Science teaching and assessment resources from Baylor College of Medicine.
  • Teacher Vision
    Classroom-ready lesson plans, printables, and resources. - Grade: K-12
  • Teachers First
    Collection of lessons, units, and web resources in a user-friendly and ad-free format.
    Social tools, lesson plans, and advice column for teachers.
  • Teachnology
    Online resources for educators including worksheets, lesson plans, rubrics, and more. - Grade: K-12
  • TED Ed
    Build a lesson around any TED-Ed Original, TED Talk or YouTube video. - Grade: K-12
  • Vision Learning
    In depth modules on a range of science, technology, engineering, and mathematics topics.
  • WNET Education
    Lesson plans, classroom activities, multimedia, and links to curriculum-based sites.
  • Zearn
    800+ digital lessons organized by curriculum and grade-level assessment.

Professional Development


  • ClassDojo
    Classroom communication and collaboration app connecting teachers, parents, and students. - Grade: K-12
  • Flipgrid
    Simple, free, video discussion platform. Ask and answer questions in your learning community.
  • Kahoot
    Free game-based classroom learning platform that make.
  • Quizizz
    Create free gamified quizzes and interactive lessons for students.
  • Socrative
    Assess students with activities or real time questions for insight into student understanding - Grade: K-12, Classroom Management


  • Brainscape
    Browse flashcards sets or create your own and share them with students.
  • Quizlet
    Well designed site where students can create and share flash card sets. - Grade: K-6