Houghton Mifflin Co. News Release - April 21, 2009

Houghton Mifflin Harcourt Brings Proven Singapore Mathematics Approach to Classrooms Nationwide

Great Source's Math in Focus provides the power of the Singapore approach backed by the most trusted name in educational publishing

BOSTON — April 21, 2009 — Global education leader Houghton Mifflin Harcourt today launches Math in Focus, an innovative new math program based on the highly acclaimed Singapore approach to mathematics.

Together with leading Asian publisher Marshall Cavendish, the Company adapted Singapore's most widely used program, My Pals Are Here! Maths for
K–5 classrooms across the United States. Aligned with the National Council of Teachers of Mathematics (NCTM) Curriculum Focal Points, Math in Focus provides a concrete-to-visual progression of instruction and focuses on fewer topics in greater depth to give students a more comprehensive understanding of critical math topics.

"Math in Focus combines Singapore's pedagogical leadership with Houghton Mifflin Harcourt's highly effective and engaging content delivery," said K–12 President Mike Lavelle, Houghton Mifflin Harcourt. "We are excited to add such a unique program to our already robust suite of trusted mathematics offerings."

The program will be unveiled at the National Council of Supervisors of Mathematics (NCSM) and NCTM conferences this week in Washington, D.C. With support from Marshall Cavendish, International Enterprise Singapore will host an insightful discussion on Singapore's mathematics methodology and its consistent success in science and mathematics achievement during a special event at the Singapore Embassy.

Dr. Fong Ho Kheong, renowned author of My Pals Are Here! Maths and Math in Focus, will present more information at Houghton Mifflin Harcourt's booth at the NCTM conference. Additionally, U.S. consultants Andy Clark and Patsy Kanter will be on hand to introduce this groundbreaking program to conference attendees.

To learn more about Math in Focus, visit www.greatsource.com/mathinfocus.

About Houghton Mifflin Harcourt
Boston-based Houghton Mifflin Harcourt Publishing Company is a global education leader and the world's largest publisher of educational materials for pre-K–12 schools. The Company publishes a comprehensive set of best-in-class educational solutions, ranging from research-based textbook programs to instructional technology to standards-based assessments for students and educators. The Company also publishes an extensive line of reference works and award-winning literature for adults and young readers. With origins dating back to 1832, Houghton Mifflin Harcourt combines its tradition of excellence with a commitment to innovation. To learn more about Houghton Mifflin Harcourt, visit www.hmhpub.com.

About Marshall Cavendish
Marshall Cavendish is an international publisher of books, directories and magazines. We produce material in both print and digital formats. With anextensive global network, we publish in 13 different languages across a wide variety of genre, including education, general interest, home and library references, and business information. A publisher of choice and winner of numerous awards and accolades, Marshall Cavendish remains committed to its customers — bringing innovative, authoritative and attractive value-added products created by its rich pool of international talent. For more information, please visit www.marshallcavendish.com. Marshall Cavendish is a member of Times Publishing Limited.