The Texas Assessment of Knowledge and Skills (TAKS™) was implemented beginning in spring 2003. To provide you with a better understanding of TAKS™ and its connection to the statewide curriculum, the Texas Essential Knowledge and Skills (TEKS), the Texas Education Agency (TEA) developed TAKS™ information booklets, which were originally published in January 2002 before the first TAKS™ field test. After several years of field tests and live administrations, the information booklets were revised in August 2004 to provide an even more comprehensive picture of the testing program. Since that time the TEKS for mathematics have been refined. These TEKS refinements were approved by the State Board of Education in 2005. As a result of the TEKS refinements, the TAKS™ Mathematics Information Booklets have been revised. We have clarified some of the existing material and, in some cases, provided new sample items and/or more explanations of certain item types. However, it is important to remember that these clarifications do not signify any substantial change in the TAKS™ testing program. The objectives assessed on TAKS™ remain unchanged.