From VCR to CD-ROM: A New Way of Viewing

Los Angeles

When James W. Stigler first thought about examining math teaching by studying videotapes of classes in the United States, Germany, and Japan, "it really was impossible," the UCLA professor recalled.

Anyone with a videocassette player knows how difficult it would be to try to analyze key events or draw broad comparisons while fast-forwarding and rewinding through hundreds...

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