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'''Common Core''' refers to an attempt by the [[federal]] government to impose its atheistic, leftist, and sub-standard education curriculum on elementary and high schools nationwide, in interference with the traditionally local control over education.  Sometimes "Common Core" is called "Common Core Standards."

'''Common Core''' refers to an attempt by the [[federal]] government to impose its atheistic, leftist, and sub-standard education curriculum on elementary and high schools nationwide, in interference with the traditionally local control over education.  Sometimes "Common Core" is called "Common Core Standards."

As one of many examples of how "Common Core" dumbs down education, it its math curriculum fails even to reach the level of pre-calculus.

As one of many examples of how "Common Core" dumbs down education, it its math curriculum fails even to reach the level of pre-calculus, and removes proofs from the teaching of geometry.

 

While common core makes fairly detailed recommendations for mathematics teaching in grades K-8, it does not attempt to set curricula for high school, grades 9-12.  Instead, it lists general "categories": Number/quantity, Algebra, Functions, Geometry, Modeling, and Probability/statistics.  The document on the subject, [http://www.corestandards.org/assets/CCSSI_Mathematics_Appendix_A.pdf here] lists the sorts of things that could be expected to be covered in those categories:  conics, vectors, matrices, functions in general, exponentials and logarithms, complex numbers, polynomials, and trig functions.  These are the usual things that comprise pre-calculus.

The mathematics part of Common Core pays particular attention to the use of proofs in the teaching of geometry, and the need for a uniform presentation of proof concepts between junior-high level and high-school level teaching.  See [http://www.curtiscenter.math.ucla.edu/downloads/Olson.pdf here] for an excruciatingly detailed analysis of some proofs about parallelograms and triangles in sections G.CO.10 and G.CO.11 of the Common Core.

The mathematics part of Common Core pays particular attention to the use of proofs in the teaching of geometry, and the need for a uniform presentation of proof concepts between junior-high level and high-school level teaching.  See [http://www.curtiscenter.math.ucla.edu/downloads/Olson.pdf here] for an excruciatingly detailed analysis of some proofs about parallelograms and triangles in sections G.CO.10 and G.CO.11 of the Common Core.