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Shoaling and schooling. These powder blue tangs are shoaling. They are swimming somewhat independently, but in such a way that they stay connected, forming a social group. These bluestripe snapper are schooling. They are all swimming in the same direction in a coordinated way. In biology, any group of fish that stay together for social reasons ...
Additionally, many schools add .33 for a plus (+) grade and subtract .33 for a minus (−) grade. Thus, a B+ yields a 3.33 whereas an A− yields a 3.67. [ 18 ] A-plusses, if given, are usually assigned a value of 4.0 (equivalent to an A) due to the common assumption that a 4.00 is the best possible grade-point average, although 4.33 is awarded ...
Swarm behaviour. A flock of auklets exhibit swarm behaviour. Swarm behaviour, or swarming, is a collective behaviour exhibited by entities, particularly animals, of similar size which aggregate together, perhaps milling about the same spot or perhaps moving en masse or migrating in some direction. It is a highly interdisciplinary topic.
Grade Age School Stage Kindergarten: 5–6 or 4–5 Preschool: Elementary school: Grade 1: 6–7 or 5–6 Primary school: Grade 2: 7–8 or 6–7 Grade 3: 8–9 or 7–8 Grade 4: 9–10 or 8–9 Grade 5: 10–11 or 9–10 Grade 6: 11–12 or 10–11 Grade 7 12–13 or 11–12 Secondary school: Junior high school: Grade 8 13–14 or 12–13
In some countries, grades are averaged to create a grade point average (GPA). GPA is calculated by using the number of grade points a student earns in a given period of time. [ 2 ] GPAs are often calculated for high school , undergraduate , and graduate students, and can be used by potential employers or educational institutions to assess and ...
Secondary education is the last six or seven years of statutory formal education in the United States. It culminates with twelfth grade (age 17–18). Whether it begins with sixth grade (age 11–12) or seventh grade (age 12–13) varies by state and sometimes by school district. [ 1 ]
Education is mandatory until age 16 (18 in some states). In the U.S., ordinal numbers (e.g., first grade) are used for identifying grades. Typical ages and grade groupings in contemporary, public, and private schools may be found through the U.S. Department of Education.
K-12 education in the United States includes primary education starting in kindergarten, and secondary education ending in grade 12. Government-funded free schools are generally provided for these grades, but private schools and homeschooling are also possible. Most children begin elementary education with kindergarten (usually five to six ...