**Reform mathematics** is an approach to mathematics education, particularly in North America. It is based on principles explained in 1989 by the National Council of Teachers of Mathematics (NCTM). The NCTM document, Curriculum and Evaluation Standards for School Mathematics, attempted to set forth a vision for K-12 (ages 5-18) mathematics education in the United States and Canada. Their recommendations were adopted by many education agencies, from local to federal levels through the 1990s. In 2000, NCTM revised its standards with the publication of Principles and Standards for School Mathematics (PSSM). Like the first publication, these updated standards have continued to serve as the basis for many states' mathematics standards, and for many federally funded textbook projects. The first standards gave a strong call for a de-emphasis on manual arithmetic in favor of students' discovering their own knowledge and conceptual thinking. The PSSM has taken a more balanced view, but still emphasizes conceptual thinking and problem solving.

Mathematics instruction in this style has been called *standards-based mathematics* or *reform mathematics*.

Read more about Reform Mathematics: Principles and Standards, Controversy, See Also

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**Reform Mathematics**- See Also

... National Council of Teachers of

**Mathematics**Mathematics education in the United States Education in the United States Mathematically Correct, which opposes the NCTM standards Prof David Klein (California State ...

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“*Mathematics* alone make us feel the limits of our intelligence. For we can always suppose in the case of an experiment that it is inexplicable because we don’t happen to have all the data. In *mathematics* we have all the data ... and yet we don’t understand. We always come back to the contemplation of our human wretchedness. What force is in relation to our will, the impenetrable opacity of *mathematics* is in relation to our intelligence.”

—Simone Weil (1909–1943)

“There is no such thing as accomplishing a righteous *reform* by the use of “expediency.” There is no such thing as sliding up- hill. In morals the only sliders are backsliders.”

—Henry David Thoreau (1817–1862)