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By converting our sims to HTML5, we make them seamlessly available across platforms and devices. Whether you have laptops, iPads, chromebooks, or BYOD, your favorite PhET sims are always right at your fingertips.Become part of our mission today, and transform the learning experiences of students eve…

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If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

To log in and use all the features of Khan Academy, please enable JavaScript in your browser.

18,200 possible mastery points

1. This unit's exercises do not count toward course mastery.

2. This unit does not include exercises.

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The Algebra 1 course, often taught in the 9th grade, covers Linear equations, inequalities, functions, and graphs; Systems of equations and inequalities; Extension of the concept of a function; Exponential models; and Quadratic equations, functions, and graphs. Khan Academy's Algebra 1 course is built to deliver a comprehensive, illuminating, engaging, and Common Core aligned experience!

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It's time to improve literacy skills during social studies instruction and ensure that readers of all abilities have what they need to access grade-level social studies concepts.

Join us on Thursday, December 7 for a look at scaffolded materials that provide extra literacy support while building key social studies concepts and skills.

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Newsela | Content and assessment platform

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Content Aligned To National & State Standard, Flexible To Support Relevant Curriculum. Find the Perfect Piece Of Content For Lessons. Go beyond the book.

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A bilingual site for educators and families of English language learners

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K12 Math Hip-Hop Videos & Lessons | Flocabulary

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Comprehensive math lesson plans with teacher guides, printable hand-outs, quizzes. Drive better standardized scores with Flocabulary!

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Your subscription means everyone can enjoy the benefits of Equatio across all platforms including Windows, Mac, Google Chrome, Mobile, and mathspace.

Our Learning and Training resources for each product can be accessed at any time on our website. Get up to speed with our software through our learning resources, then verify your expertise by taking part in our certification program.

Our support site gives you access to lots of common questions that other users of our software have about the technical stuff. If you can't find what you're looking for there, then our Tech Support team is on hand at support@texthelp.com 9-5pm every day to help with troubleshooting or technical problems.

We're always working on making our products better, so any improvements or enhancements are pushed out automatically to you, there's no upgrading to do on your part.

Plus, you now get free access to the Texthelp Academy for how-to information, video tutorials, product webinars and lots more.

All of this is included as part of your subscription. We do not charge any extra for these services.

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Equatio - Equation Writer to Create Accessible Digital Math, Chemistry or Physics

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Create complex maths, chemistry and physics expressions and formulas using keyboard, touchscreen or voice recognition. Try it for free.

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Book Creator - Love Learning - Book Creator app

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Teachers love it. Students love it. Book Creator is the simplest, most inclusive way to create content in the classroom.

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Second Step Middle & High School SEL Toolkit 

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Second Step Middle & High School SEL Toolkit 

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Free SEL Activities and Resources | Second Step

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Use and share these research-based SEL activities and resources to empower children to thrive at school, at home, and everywhere in between.

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Everyone LOVES our free weekly printables! They're unique, fun, engaging, and simply brilliant. Each one of them is carefully designed to help you raise resilient and happy children. You will receive this handy one-page guide in your welcome email.

Free Printables
Every Friday

SIGN UP BELOW TO GET THE
WEEKLY PRINTABLES

Immediately, you will receive our "Parent's Guide to a Growth Mindset". And you will be getting an email with free printables every FRIDAY!

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Everyone LOVES our free weekly printables! They're unique, fun, engaging, and simply brilliant. Each one of them is carefully designed to help you raise resilient and happy children. You will receive this handy one-page guide in your welcome email. SIGN UP BELOW TO GET THE WEEKLY PRINTABLES Immediately, you will receive our "Parent's Guide to a Growth Mindset".