Teaching Resources

These online resources were selected as examples of sites that are available online for educators to use to find lesson ideas, online projects, movie clips, and/or interactive games/activities to use to help make the mathematical content real.


Most of these resources are free. Since they are grant-driven, some are now subscription-based. But you can create rubrics, online quizzes, tracks (which are a list of websites that you can use in a lesson or for professional development), and online calendars.

Achieve.org Mathematics Tasks

Tasks that illustrate the Focus, Coherence, and Rigor required by college- and career-ready standards

California K-12 High Speed Network

This site is free to teachers who have an email address from a district. Places to share files and load podcasts.

Conceptua Math

Free, online tools for fractions instruction. These flexible fractions tools allow students to develop conceptual understanding, procedural strength and higher order thinking skills in this fundamental mathematics topic. Great for use on interactive whiteboards for whole-class instruction. Tools include fraction circles, horizontal and vertical bars, area model, dots (discrete), number line, benchmark fractions, unitizing with pattern blocks and more.

Illustrative Mathematics

The Illustrative Mathematics Project will provide guidance to states, assessment consortia, testing companies, and curriculum developers by illustrating the range and types of mathematical work that students will experience in a faithful implementation of the Common Core State Standards, and by publishing other tools that support implementation of the standards.

Inside Mathematics

Welcome to Inside Mathematics, a professional resource for educators passionate about improving students’ mathematics learning and performance. This site features classroom examples of innovative teaching methods and insights into student learning, tools for mathematics instruction that teachers can use immediately, and video tours of the ideas and materials on the site.

Math Assessment Project

The Mathematics Assessment Program (MAP) aims to bring to life the Common Core State Standards (CCSS) in a way that will help teachers and their students turn their aspirations for achieving them into classroom realities. Funded by the Bill and Melinda Gates Foundation, MAP is a project of the long-established Mathematics Assessment Resource Service (MARS) collaboration between the University of California, Berkeley, the Shell Center at the University of Nottingham, and the Silicon Valley Mathematics Initiative, working with school systems across the US and UK to develop improved assessment. The materials from this project will exemplify CCSS in explicit down-to-earth performance terms.

Math Circles

Mathematical Circles are a form of education enrichment and outreach that bring mathematicians and mathematical scientists into direct contact with pre-college students. These students, and sometimes their teachers, meet with mathematical professionals in an informal setting, after school or on weekends, to work on interesting problems or topics in mathematics. The goal is to get the students excited about the mathematics, giving them a setting that encourages them to become passionate about mathematics. 

Math Festival

A Math Festival is a hands-on, interactive, multi-grade program that can reach every student at your school. We can also include coordinated programs for teacher professional development and outreach to parents and families—all in the same school day!

A Math Festival is an exciting school-wide event to expose students, teachers, and parents to key critical mathematics topics in a positive, self exploratory, festival-like atmosphere designed for ready access for transitional kindergarten through 8th grade students with activities and challenges appropriate for all ability levels. A Math Festival is good mathematics, Common Core Standards based, and fun!

Mathematics in Movies

This site from Harvard has video clips of movies that have a math connections. Some are actual video clips, others might be a screen shot of a person standing in front of a blackboard that has an equation on it.

Michigan Council of Teachers of Mathematics - Rich Math Tasks

Rich math tasks are great tools to engage students in the CCSS Standards of Mathematical Practice while building content knowledge.  They're also a wonderful formative assessment tool.

NCTM Illuminations

Illuminations is designed to provide standards-based (online) resources that improve the teaching and learning of mathematics for all students. Provide materials that illuminate the vision for school mathematics set forth in Principles and Standards for School Mathematics.

National Library of Virtual Manipulatives

This site has an easy matrix to help you narrow your search for the virtual manipulatives or activities you might be able to use in your lesson.

NRICH Home Page

This is the portal for this wonderful site from Cambridge University with interactive sites in many math topics. This project has problems, articles and games for teachers and students.


PUMAS is a collection of brief examples showing how math and science topics taught in K-12 classes can be used in interesting settings, including every day life.

The examples are written primarily by scientists, engineers, and other content experts having practical experience with the material. They are aimed mainly at classroom teachers, and are available to all interested parties via the PUMAS web site.

Our goal is to capture, for the benefit of pre-college education, the flavor of the vast experience that working scientists have with interesting and practical uses of math and science.

Project Lead the Way

Project Lead The Way (PLTW) prepares students to be the most innovative and productive leaders in Science, Technology, Engineering, and Mathematics (STEM) and to make meaningful, pioneering contributions to our world. PLTW partners with middle schools and high schools to provide a rigorous, relevant STEM education. Through an engaging, hands-on curriculum, PLTW encourages the development of problem-solving skills, critical thinking, creative and innovative reasoning, and a love of learning. The PLTW middle and high school STEM education programs give students a brighter future by providing them with a foundation and proven path to college and career success in STEM-related fields. STEM education is at the heart of today’s high-tech, high-skill global economy. For America to remain economically competitive, our next generation of leaders must develop the critical-reasoning and problem-solving skills that will help make them the most productive in the world. PLTW sparks the ingenuity, creativity, and innovation within all of our students.

SMILE ( Science and Math Informal Learning Educators)

Are you looking for new ways to teach kids about math and science? Do you want activities that meet you where you live, whether your “classroom” is an active volcano, the shark tank at the local aquarium, or your own kitchen table?

You’ve come to the right place. SMILE is collecting the best educational materials on the web and creating learning activities, tools, and services – all designed especially for those who teach school-aged kids in non-classroom settings.

Come to SMILE for science and math activities that you and the kids in your life will love. But come, too, for the community. We are encouraging educators to both use and contribute to the growing SMILE collection. People like you will make SMILE a meeting place for educators excited about what they do and ready to talk about how they do it.

SMILE is the Science and Math Informal Learning Educators pathway of the National Science Digital Library (NSDL).

Teachers’ Domain

Teachers’ Domain is an extensive library of free digital resources from public television and other leading media producers, designed for classroom use and professional development.


This is a site that hosts online videos for teachers (by teachers). There are ads on the pages, but some of the moves are quite interesting and engaging. Search through the video clips to help math more entertaining or to get ideas from other teachers on how to teach a lesson.


Our main goal is to inspire, educate and empower teachers of mathematics, transforming the latest research on math into accessible and practical forms. We know from research how to teach math well and how to bring about high levels of student engagement and achievement but research has not previously been made accessible to teachers.