Khan Academy allows you to learn almost anything for free. - You can learn anything â for free: Over 10,000 videos and explanations at your fingertips in math, science, economics, history, and much, much more - Sharpen your skills: over 40,000 interactive Common Core aligned practice questions are included with instant feedback and step-by-step hints. Follow along with what youâre learning in school or practice at your own pace - Quickly find what you need: Redesigned navigation and search make it faster to find what you want - Keep learning even when youâre offline: Bookm
Khan Academy is a free educational mobile app By Khan Academy.It helps students in grades HS practice the following standards HSA.SSE.A.1,HSA.SSE.A.2,HSA.SSE.B.3.
1. HSA.SSE.A.1 : Interpret expressions that represent a quantity in terms of its context.
2. HSA.SSE.A.2 : Use the structure of an expression to identify ways to rewrite it. For example, see x4 - y4 as (x2)2 - (y2)2, thus recognizing it as a difference of squares that can be factored as (x2 - y2)(x2 + y2)..
3. HSA.SSE.B.3 : Choose and produce an equivalent form of an expression to reveal and explain properties of the quantity represented by the expression.
Developer URL: https://www.khanacademy.org/
Software Version: 2.6.0