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  2. Academic grading in the United States - Wikipedia

    en.wikipedia.org/wiki/Academic_grading_in_the...

    Below is the grading system found to be most commonly used in United States public high schools, according to the 2009 High School Transcript Study. [2] This is the most used grading system; however, there are some schools that use an edited version of the college system, which means 89.5 or above becomes an A average, 79.5 becomes a B, and so on.

  3. Mathematics education in the United States - Wikipedia

    en.wikipedia.org/wiki/Mathematics_education_in...

    Requiring Algebra II for high school graduation gained traction across the United States in the early 2010s. [52] The Common Core mathematical standards recognize both the sequential as well as the integrated approach to teaching high-school mathematics, which resulted in increased adoption of integrated math programs for high school.

  4. 420 (number) - Wikipedia

    en.wikipedia.org/wiki/420_(number)

    420 is a slang term that refers to the consumption of cannabis. April 20th is commonly celebrated as a holiday dedicated to the drug, due the day being notated as 4/20 in the month-day-year format. Because of these associations, 420 has been humorously referred to as the "weed number". [7] 420 is the country calling code for Czech Republic.

  5. What does 420 mean? Here's what to know about the 'weed ... - AOL

    www.aol.com/does-420-mean-heres-know-185614269.html

    What does 420 mean? ... According to the lore, a group of high schoolers attending Northern California's San Rafael High School in the early 1970s would regularly gather at 4:20 p.m. to smoke pot.

  6. What is 420? The meaning behind the day and how it started - AOL

    www.aol.com/news/420-meaning-behind-day-started...

    It's widely believed 420 was coined in the early 1970s by a group of Californian students. Skip to main content. News. 24/7 help. For premium support please call: 800-290-4726 more ...

  7. Here's what 420 means and how and why it's tied to marijuana

    www.aol.com/heres-420-means-why-tied-172731610.html

    For premium support please call: 800-290-4726 more ways to reach us

  8. Grading in education - Wikipedia

    en.wikipedia.org/wiki/Grading_in_education

    Grading in education is the application of standardized measurements to evaluate different levels of student achievement in a course. Grades can be expressed as letters (usually A to F), as a range (for example, 1 to 6), percentages, or as numbers out of a possible total (often out of 100).

  9. Where did 420 come from? The blunt truth about the ... - AOL

    www.aol.com/where-did-420-come-blunt-020526271.html

    According to popular lore, 420 was started in the early 1970s by a group of students at Northern California's San Rafael High School.The group, which dubbed itself the Waldos, used to gather after ...