Mathematically Correct
August 1, 1996

What's a parent to do?


Many schools are about to embark on a grand experiment, using radically different and unproven materials and methods for mathematics education.

What should parents do?

Parents must insure the mathematics learning of their own children.

This may not be an easy responsibility to fulfill, but parents should not assume that the educational system will sufficiently provide for their children's needs, even if their children get good grades in math.

How can parents fulfill this responsibility?

One example of the limitations of a reform program may illustrate the situation and what parents can do about it. This example is taken from Interactive Mathematics: Activities and Investigations (Glencoe/McGraw-Hill, New York, 1995), units 7-12 (second book in series), pages 76 & 77.

These pages are devoted to a script presenting a dialogue among school-age students. They discuss how to pick the correct size for a container for storing phone books in connection with their recycling project. The culmination of this dialogue is the idea that they can measure the length and width of the bottom of the phone book and multiply to get the area. Then, one student asks, "... how large do our storage containers need to be? Will it work to use anything that has the same area on the bottom?" Another replies, "It really needs to have the same dimensions so that the phone books will fit inside."

No mention of the volume of the 3-dimensional phone books or the 3-dimensional containers is made or the arrangement of books within the container, let alone of the issues of the weight of the phone books and the strength of the container.

The ONLY entry in the combined glossary/index for "volume" points to page 187 where it says, "Linear, volume, temperature and weight measurements have been converted from traditional measures to metric units."

Numbered items from the Virginia Standards for grade 7 mathematics appear below. Compare the treatment of volume in the Glencoe text to the standards 7.9 and 7.13. Does the Glencoe text satisfy these standards? Will seventh grade children in a class with this text learn to work with volume? Should parents of seventh graders want them to be able to solve volume problems? Is learning to solve volume problems a reasonable learning objective for a seventh-grade student? Parents should answer such questions in their study of the education of their own children.

Parents can insure that their children learn mathematics.
The members of Mathematically Correct encourage parents to do so.


The following are from the Seventh Grade Standards for Mathematics from the Standards of Learning for Virginia Public Schools.



Update Jan. 28, 1997

First Release of Standards
from Mathematically Correct

On January 28, 1997, Mathematically Correct submitted a set of Standards from Kindergarten through Pre-Algebra to the School Board in San Diego. These standards contain a list of objectives by grade level. Parents may find it interesting to look at their children's math programs to see if these objectives will be satisfied.