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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 ...
The CK-12 Foundation is a California-based non-profit organization which aims to increase access to low-cost K-12 education in the United States and abroad. [2] CK-12 provides free and customizable K-12 open educational resources aligned to state curriculum standards. As of 2022, the foundation's tools were used by over 200,000,000 students ...
Stride, Inc. (formerly K12 Inc.) is a for-profit education company that provides online and blended education programs. Stride, Inc. is an education management organization (EMO) that provides online education designed as an alternative to traditional "brick and mortar" education for public school students from kindergarten to 12th grade (hence its former name), as well as career learning ...
The expression "K–12" is a shortening of kindergarten (K) for 5–6 year olds through twelfth grade (12) for 17–18 year-olds, as the first and last grades, respectively, of free education [5] in these countries. The related term " P–12 " is also occasionally used in Australia and the United States to refer to the sum of K–12 plus ...
Educational stages are subdivisions of formal learning, typically covering early childhood education, primary education, secondary education and tertiary education.The United Nations Educational, Scientific and Cultural Organization recognizes nine levels of education in its International Standard Classification of Education (ISCED) system (from Level 0 (pre-primary education) through Level 8 ...
Heart disease and stroke. Higher levels of the amino acid homocysteine may be associated with a higher risk of heart attack and stroke. B12 may lower homocysteine levels which could contribute to ...
maintaining your ability to think. regulating and creating DNA. producing energy. keeping your brain and nervous system healthy. Your liver stores extra vitamin B12 for times when you consume less ...
In the United States, education is provided in public and private schools and by individuals through homeschooling. State governments set overall educational standards, often mandate standardized tests for K–12 public school systems and supervise, usually through a board of regents, state colleges, and universities.