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This profile was last updated on 4/30/07  and contains information from public web pages.

Mr. Guillermo Mendieta

Wrong Guillermo Mendieta?

Employment History

  • Director
    Meaningful Learning
  • Director of Mathematics Professional Development
    The Achievement Council
  • Senior Associate
    The Achievement Council
  • Director of Mathematics Standards Initiatives
    The Achievement Council
  • Director of Mathematics Professional Development
    The Achievement Council Director of mathematics


  • bachelors of science , pure mathematics
    Louisiana State University
14 Total References
Web References
Guillermo Mendieta: Author, Professional Development Presenter., 30 April 2007 [cached]
Guillermo Mendieta published his first mathematics book at the age of eighteen while earning his bachelors of science in pure mathematics at Louisiana State University. He is currently the director of Meaningful Learning, an organization of award-winning teachers and administrators working with low-performing schools to improve mathematics achievement. During the last fifteen years Mr. Mendieta has been the director of several mathematics initiatives with The Achievement Council in Los Angeles, California. He has taught mathematics at all grades from sixth-grade through college level and has served as a mathematics coach for several schools throughout California.
Guillermo has worked with thousands of teachers and dozens of districts across the country to improve student achievement in mathematics. He was the co-director of California's first statewide conference on mathematics and the Latino student. He is the recipient of the NAACP Los Angeles Teacher of the Year award, as well as one of the graduate student research awards from California State University, Los Angeles.
Mr. Mendieta was a contributing author to the Any-Time Math Series. He has served in numerous boards, including the advisory boards of the California Math Council, the National Science Foundation's Systemic Reform Initiatives, and the Annenberg Foundation's National Equity Advisory Board. Guillermo is a certified AB466 trainer for the Algebra McDougal Littell and the Prentice Hall textbook series. He is a sought-after, dynamic and engaging professional developer and keynote speaker and is a certified group facilitator. Guillermo received the 2006 National Equity and Leadership mathematics award from TODOS, and NCTM affiliate. He is currently working on the second volume of pictorial mathematics.
CHN's 2005 Family Expo Guest Speakers, 31 Jan 2005 [cached]
Speakers | Carolyn Forte | Dr. Stephen Guffanti | David and Ann Severi | Ann Lahrson-Fisher | Karen Taylor | Marilyn Ashley | Martin Forte | Martin & Carolyn Forte | Peter Kraus | Melissa Zawrotny | Susan K. Stewart | Colleen and Kevin Cato | Mary Landau | Allison Williams | Maria Egbert | Corin Barsily Goodwin | Becca Orlowski | Laura Chapman | Kathleen Cotter Lawler | Dana L. Eppele | Amy Lyen | Guillermo Mendieta | Sally Taylor | Carolyn and Martin Forte | Barbara Schwartz, M.A. | Scott and Traci Heaton | Loren Mavromati | Colleen Cato | Jim Weiss | Mark Osterink | Etan Boritzer | Mark Cruthers | Patricia Padgett | Soizic Cifuentes | Susan Nowicke | Robin Schneider | Faith Solis
GUILLERMO MENDIETAGuillermo Mendieta is the director of Meaningful Learning, a professional development organization that works to improve the learning and enjoyment of mathematics, and he is the author of Pictorial Mathematics: An Engaging Visual Approach to the Teaching and Learning of Mathematics.He was a contributing author to the Any-Time Math series, and is currently writing the second volume of Pictorial Mathematics.
TAC Staff, 9 Mar 2004 [cached]
Guillermo MendietaSenior Associate
Fontana, California - Community News, 24 Feb 2004 [cached]
One of the members of the coalition, Guillermo Mendieta, director of Mathematics Standards Initiatives at The Achievement Council, has vowed to go on a hunger strike, starting April 1st (April is mathematics month) which will continue until the Board votes to not eliminate the integrated mathematics courses.When asked about his decision to go on a hunger strike he said:
Mr. Mendieta says that while there is no question that there serious implementation problems, including the lack of proper training on how to effectively use reformed/integrated programs, the exist evidence strongly suggests that despite those problems, the programs are having a tremendously positive impact on students.He believes that to improve student achievement in mathematics, rather than eliminating these programs, the board should be focusing on how to improve them.
Given the overwhelming evidence that shows how Integrated mathematics programs are improving the mathematics learning of so many students, Mr. Mendieta was asked why the district seems to making a totally irrational policy decision.He said, "you need to remember what Mr. Cortines said a few days before he became the interim superintendent, he said the Los Angeles Unified School District was the most dysfunctional district in the nation.A major symptom of that disjunction is evident in the district's pattern of making substantial policy decisions with no regard to the research or the evidence of the likely impact on students and teachers.
For more information, contact: Guillermo Mendieta, (909) 899-4041 Mon-Th evening 7:30-10:00 p.m., Fridays 7:30 a.m. to 9:30 p.m. or by email at
Just a little background on the Achievement Council, the organization I work for, and on me, for anyone wanting credibility-credentials.
TAC Staff, 28 Feb 2003 [cached]
Guillermo MendietaSenior Associate
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