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A computer mouse is a hand-held pointing device that detects two-dimensional motion relative to a surface and controls the graphical user interface of a computer. Learn about its history, design, features, and etymology from this encyclopedia article.
Learn how academic grading is done in the U.S. with letter and numerical scales, percentage and GPA conversions, and standards-based assessment. A D is usually the lowest passing grade in primary and secondary schools, but not in college and universities.
A report card is a document that shows a student's academic performance and progress. Learn about the different types of report cards used in various countries and regions, such as the United States, the United Kingdom, Ontario, Canada and Former Yugoslavia.
Learn about the history, structure, and performance of the fourth-largest school district in the US, serving over 340,000 students in Chicago, Illinois. Find out how the Chicago Board of Education oversees the district, and how it has faced challenges such as segregation, budget cuts, and COVID-19.
Educational technology is the combined use of computer hardware, software, and educational theory and practice to facilitate learning. It encompasses various domains, terms, and concepts related to learning and teaching with technology, such as e-learning, m-learning, virtual education, and smart learning.
Learn about the history, criticism and variations of grading in education, including CGPA (cumulative grade point average) and GPA (grade point average). Find out how grades are used and calculated in different countries and regions.
The C57BL/6 mouse was the second-ever mammalian species to have its entire genome published. [ 1 ] The dark coat makes the mouse strain convenient for creating transgenic mice: it is crossed with a light-furred 129 mouse, and the desirable crosses can be easily identified by their mixed coat colors.
Learn about the history, geography, and schools of Ohio's second-largest public school district, founded in 1829. Cincinnati Public Schools operates 62 schools, including 14 high schools, and serves students from preschool to grade 12.