On January 22nd, 2009, the Texas State Board of Education met to consider a draft of their new science standards. At that meeting, the Board’s Chairman, Dr. Donald McLeroy, proposed a new student expectation for the Biology standards regarding evolution.
The standard concerned the fossil evidence of evolution and would require students to:
Analyze and evaluate the sufficiency or insufficiency of common ancestry to explain the sudden appearance, stasis and sequential nature of groups in the fossil record.
In support of this proposal, Dr. McLeroy read a long list of quotes into the public record. These quotes were from various scientific books and articles that Dr. McLeroy claimed to have read in preparation for his remarks.
Based on his comments, Dr. McLeroy clearly believed that this list of quotes presented a compelling case for the existence of a scientific controversy concerning evolution. Apparently, a majority of his fellow Board members agreed, and the new student expectation was added to the current draft of the Biology standards, pending a final vote in March.
The scientists at the meeting, on the other hand, did not agree. They say that Dr. McLeroy's amendment is a hopelessly muddled mess that will only serve to confuse students about the evidence of evolution in the fossil record. The sudden appearance, stasis, and sequential nature of groups in the fossil record is due to the fact that species evolve at different rates - sometimes rapidly, sometimes gradually, and sometimes barely at all. Common ancestry is the result of the various processes that have led to the formation of new species over time, but the rate at which these processes occur has nothing to do with whether existing species share common ancestors.
In other words, the new student expection would require students to learn that common ancestry may be insufficient to explain something that common ancestry is not used explain.
But, as you'll see when you click the link above, McLeroy cherrypicked partial quotes out of context and sometimes not with the correct source to try to dumb down science in Texas.