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Holt McDougal is an American publishing company, a division of Houghton Mifflin Harcourt, that specializes in textbooks for use in high schools.. The Holt name is derived from that of U.S. publisher Henry Holt (1840–1926), co-founder of the earliest ancestor business, but Holt McDougal is distinct from contemporary Henry Holt and Company, which claims the history from 1866.
Until 2008, all of Larson's textbooks were published by D. C. Heath, McGraw Hill, Houghton Mifflin, Prentice Hall, and McDougal Littell. In 2008, Larson was unable to find a publisher for a new series for middle school to follow the 2006 "Focal Point" recommendations of the National Council of Teachers of Mathematics . [ 27 ]
Under (new from 1991) president Nader F. Darehshori Houghton Mifflin acquired McDougal Littell in 1994, for $138 million, an educational publisher of secondary school materials, [26] and the following year acquired D.C. Heath and Company, [27] a publisher of supplemental educational resources.
It contains many important results in plane and solid geometry, algebra (books II and V), and number theory (book VII, VIII, and IX). [52] More than any specific result in the publication, it seems that the major achievement of this publication is the promotion of an axiomatic approach as a means for proving results.
Algebra is the branch of mathematics that studies certain abstract systems, known as algebraic structures, and the manipulation of expressions within those systems. It is a generalization of arithmetic that introduces variables and algebraic operations other than the standard arithmetic operations, such as addition and multiplication.
[1] Elementary algebra, also known as high school algebra or college algebra, [2] encompasses the basic concepts of algebra. It is often contrasted with arithmetic : arithmetic deals with specified numbers , [ 3 ] whilst algebra introduces variables (quantities without fixed values).
Algebraic geometry is a branch of mathematics which uses abstract algebraic techniques, mainly from commutative algebra, to solve geometrical problems.Classically, it studies zeros of multivariate polynomials; the modern approach generalizes this in a few different aspects.
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