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A formal expression is a kind of string of symbols, created by the same production rules as standard expressions, however, they are used without regard to the meaning of the expression. In this way, two formal expressions are considered equal only if they are syntactically equal, that is, if they are the exact same expression.
The brand name is currently owned by Houghton Mifflin Harcourt, but is defunct. [1] Number Munchers is the first educational game in the Munchers series. Designed to teach basic math skills, it was popular among American school children in the 1980s and 1990s and was the recipient of several awards. [2]
FASTT Math (acronym for Fluency and Automaticity through Systematic Teaching Technology) is a mathematic educational software developed and released by Scholastic Corporation in 2005. [ 2 ] [ 3 ] Design
It was formerly known as Houghton Mifflin Company, but it changed its name following the 2007 acquisition of Harcourt Publishing. [10] Prior to March 2010, it was a subsidiary of Education Media and Publishing Group Limited, an Irish-owned holding company registered in the Cayman Islands and formerly known as Riverdeep .
Houghton Mifflin acquired Harcourt in 2007. It incorporated the Harcourt name to form Houghton Mifflin Harcourt. As of 2012, all Harcourt books that have been re-released are under the Houghton Mifflin Harcourt name. The Harcourt Children's Books division left the name intact on all of its books under that name as part of HMH.
In 1995, Raytheon sold D. C. Heath to Houghton Mifflin. By 1999, Larson's titles had become a major component of Houghton Mifflin's publications. In that year, he was listed in the company's annual report as one of Houghton Mifflin's major authors. In 2008, the College Division of Houghton Mifflin was sold to Cengage Learning.