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2. Sexagesimal - Wikipedia

   en.wikipedia.org/wiki/Sexagesimal

   Sexagesimal, also known as base 60, [1] is a numeral system with sixty as its base.It originated with the ancient Sumerians in the 3rd millennium BC, was passed down to the ancient Babylonians, and is still used—in a modified form—for measuring time, angles, and geographic coordinates.

3. Academic grading in the United States - Wikipedia

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

   The overall grade for the class is then typically weighted so that the final grade represents a stated proportion of different types of work. For example, daily homework may be counted as 50% of the final grade, chapter quizzes may count for 20%, the comprehensive final exam may count for 20%, [1] and a major project may count for the remaining ...

4. Grading systems by country - Wikipedia

   en.wikipedia.org/wiki/Grading_systems_by_country

   3등급 / Grade 3 60–77: 4등급 / Grade 4 40–60: 5등급 / Grade 5 ... that one might obtain a primary grade of 23 out of 37 in mathematics and a primary grade ...

5. Third grade - Wikipedia

   en.wikipedia.org/wiki/Third_grade

   Third grade (also 3rd Grade or Grade 3) is the third year of formal or compulsory education. It is the third year of primary school . Children in third grade are usually 8–9 years old.

6. Babylonian mathematics - Wikipedia

   en.wikipedia.org/wiki/Babylonian_mathematics

   The Babylonian system of mathematics was a sexagesimal (base 60) numeral system. From this we derive the modern-day usage of 60 seconds in a minute, 60 minutes in an hour, and 360 degrees in a circle. [8] The Babylonians were able to make great advances in mathematics for two reasons.

7. Elementary mathematics - Wikipedia

   en.wikipedia.org/wiki/Elementary_mathematics

   Elementary mathematics, also known as primary or secondary school mathematics, is the study of mathematics topics that are commonly taught at the primary or secondary school levels around the world. It includes a wide range of mathematical concepts and skills, including number sense , algebra , geometry , measurement , and data analysis .

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9. Academic grading in Canada - Wikipedia

   en.wikipedia.org/wiki/Academic_grading_in_Canada

   In francophone schools or CBE Schools from kindergarten to Grade 9, an alternative grading system is used instead of percentages and letter grades: numbers 1 through 4 are used (4 is excellent, 3 is good, 2 is average, and 1 is below average. Note: not all schools utilize a +/− system when giving grades. Some just give the generic grade.