Get started with a free trial that includes 35 lessons per grade plus 25 tools, 10 videos and 4 puzzle packs. Contact us for school options.
Set up, organize, and manage your class easily. Create groups, assign lessons, and monitor real-time progress, all in one place.
Complete 135-lesson scope and sequence for each grade K-5, pre-k program, summer school, and over 70 targeted intervention modules.
Identify gaps in foundational skills with our new game-changing diagnostics, which include source lessons, standards and a backfill plan.
Spiral review has never been easier, thanks to our automated workbook generator that allows seamless customization for your students.
Organized by strand and problem type in our tool bank, and built into each lesson, our tools develop deep comprehension and fluency.
Turn math anxiety into math automaticity with our digital, trackable, fluency problem packs that cover all four major operations.
Engagement like you've never seen! Make math practice accessible and fun and for learners of all ages, backgrounds and learning abilities.
Seasonal contests that turn routine review into high-energy, community-building, classroom events. Bring teamwork into math time.
Transforms rigorous practice into a compelling learning event. With just a few clicks, you can engage your students with targeted practice.
Tangy Tuesday and Wordy Wednesday puzzle packs give students a fun, focused way to build their fluency and problem-solving skills.
Greg Tang's best-selling books come alive in our interactive eBook library, with clever rhymes, colorful illustrations and clickable hints.
Interactive game boards, comprised of a multitude of math activities, are the perfect holiday or seasonal activity for your students.
Extensive library of recorded PD and student lessons that include read-aloud, model thinking, and guide users step-by-step.
Get the support you need through our live workshops or schedule PD for your team or faculty on the topic of your choice.
Fresh Thinking Foundation hosts a 2-day math conference this summer, to inspire, connect, and empower passionate educators like you.
Access lesson explanations, strategies and examples that align directly with Tang Math. It can even assist in differentiating instruction!
Share ideas, thoughts, and questions with a community of teachers who are committed to transforming education for the world.
We're here to help! If you have questions, need support, or simply want to learn more about our program, don't hesitate to get in touch.
Measure angles using a protractor. Classify by comparing angles to 90° right angles formed by perpendicular rays, and 180° straight angles formed by rays pointing in opposite directions. An angle less than 90° is an acute angle. An angle between 90° and 180° is an obtuse angle. A reflex angle is between 180° and 360°.