There are currently few STAAR books available, as this test is still new. The STAAR will replace the TAKS test and will be composed of three end-of-course tests in each of four core subject areas - English, math, science and social studies.
Texas Education Agency official website. Texas Education Agency website provides leadership, guidance and resources to help schools meet the educational needs of all students.
TAKS vs. STAAR Interesting article on the differences between TAKS and STAAR.
TAKS released tests
Middle School Math
Texas TAKS - directory of Texas TAKS resources
Texas TAKS Practice - Texas TAKS math practice
Texas STAAR - directory of Texas STAAR resources