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  2. Course Hero - Wikipedia

    en.wikipedia.org/wiki/Course_Hero

    Current status. Active. [ 1] Course Hero is an American education technology website company based in Redwood City, California which operates an online learning platform for students to access course-specific study resources and online tutors. Subscription or content contribution is required for students to use the platform.

  3. Brainly - Wikipedia

    en.wikipedia.org/wiki/Brainly

    Brainly is an education company based in Kraków, Poland, with headquarters in New York City.It is an AI-powered homework help platform targeting students and parents. As of November 2020, Brainly reported having 15 million daily active users, making it the world's most popular education app. [2] In 2024, FlexOS reported Brainly as the #1 Generative AI Tool in the education category and the #6 ...

  4. Nyquist–Shannon sampling theorem - Wikipedia

    en.wikipedia.org/wiki/Nyquist–Shannon_sampling...

    Nyquist–Shannon sampling theorem. The Nyquist–Shannon sampling theorem is an essential principle for digital signal processing linking the frequency range of a signal and the sample rate required to avoid a type of distortion called aliasing. The theorem states that the sample rate must be at least twice the bandwidth of the signal to avoid ...

  5. Google Lens' new 'Homework' filter will solve math problems ...

    www.engadget.com/google-lens-socratic-math...

    And soon the tech giant will help you solve math problems simply by taking a photo of them using Google Lens. The company is using technology from mobile learning app Socratic, which it acquired ...

  6. The best free tools and services for college students - Engadget

    www.engadget.com/free-stuff-for-college-students...

    Libby. Not enough people, college students or otherwise, take full advantage of their local library. Libby is an easy way to change that. So long as you have a library card, this clean little app ...

  7. The best organization apps for students - Engadget

    www.engadget.com/best-organization-apps-for...

    TickTick. Just like Goodnotes 5 and Notability, there's a never-ending debate online about the merits of Todoist and TickTick. At first glance, it feels like the latter is a better option ...

  8. Back to school: The best apps for students | TechCrunch

    techcrunch.com/2023/08/17/back-to-school-apps-2023

    Quizlet: learning app that allows users to create flashcards and access expert-written solutions. ClassDojo: communication app for students, teachers and parents. Newsela: source for articles ...

  9. Education in Nicaragua - Wikipedia

    en.wikipedia.org/wiki/Education_in_Nicaragua

    Academic grading in Nicaragua works on a 100-point scale. For primary school and high school levels, a 60 is good enough to pass, while for further levels the pass grade is 70. Students who attain from 60 to the pass grade get the chance to take one extra test that reviews the year's topics and in which a 70 is needed to achieve a pass grade.