TEA Mathematics 
Texas Education Agency: This site will provide you with information on curriculum, assessment, rules, etc. 
TEA Released TAKS Tests 
Texas Education Agency: This site will provide you with Released TAKS Tests. 
Mathematics TEKS Toolkit 
The UT Dana Center provides resources for implementing the mathematics TEKS and strengthening mathematics education in Texas. Includes instructional materials and support. 
National Council of Teachers of Mathematics 
National Council of Teachers of Mathematics is a public voice of mathematics education, providing vision, leadership, and professional development to support teachers in ensuring mathematics learning of the highest quality for all students. 
Texas InstrumentsEducational Technology 
Texas Instruments provides products, downloads, classroom activities, and professional development for educators. Geared toward middle and high school math and science. 
Region IV Mathematics Benchmark Assessments 
Mathematics Benchmark Performance Assessments are designed to assess student mastery as a result of TEKSbased instruction and to serve as an indicator for student success on TAKS. Instructional rubrics that analyze a student's conceptual knowledge, procedural knowledge, and communication skills are included. The assessments are a free resource to educators, parents, and students. Tasks grouped by grade level that address the concepts of main idea, summarization, characterization, plot understanding, text comparisons and connections, and inferential thinking are available on both the public and administrator sites. 
Smart Teaching TAKS Materials 
Smart Teaching: Dallas County schools and its partner school districts (CarrolltonFarmers Branch, Garland, Highland Park, and Richardson) have developed these materials to assist you in better understanding the Texas Assessment of Knowledge and Skills (TAKS) test. The team has analyzed every question on the 2003, 2004, and 2006 released tests so that you can easily see:
 Detailed analysis of every TAKS item
 Why correct answers are correct?
 What kinds of distracters/incorrect answers were used? How did students think/compute that caused them to answer incorrectly?
 What information will help teachers focus their instruction more specifically?

Create A Graph 
Free graph creator. 
Green Eclipse Teacher Tools 
Green Eclipse: free puzzles creator. 
World Clock 
World Clock that presents real time data/statistics. 
The Quantile Framework for Mathematics 
Quantile Framework for Mathematics: tool for linking assessment with mathematics instruction. 
Rubistar 
RubiStar is a free tool to help teachers create quality rubrics. Templates are available to help get you started. 
Computational Resources 
Shodor Foundation: provides curriculum materials, faculty development, and student enrichment opportunities to advance science and math education through the use of computational science, modeling, and technology. 
Learner.org Teacher Resources 
Provides free teacher professional development in a wide range of curricular areas; specific mathematics areas include: Learning Math: Measurement K4; Learning Math: Number and Operations K4; Private Universe Project in Mathematics K4; Teaching Math: A Video Library K4; Learning Math: Patterns, Functions and Algebra 58; Learning Math: Data Analysis, Statistics, and Probability 58; Learning Math: Geometry 58; The Missing Link: Essential Concepts for Middle School Math Teachers 58; Teaching Math: A Video Library 58; Insights into Algebra 1: Teaching for Learning 912; Teaching Math: A Video Library 912; Against All Odds: Inside Statistics; Algebra: In Simplest Terms. 
InterMath 
InterMath is designed to help middle school teachers deepen their understanding of math concepts. More than 200 "recommended investigations" are offered for teachers to solve and then modify for use with students. They're presented in 13 units: patterns, functions and equations, graphing (algebra); circles, quadrilaterals, triangles, polygons, 3D objects (geometry); fractions and decimals, integers, ratio and percent (number concept); statistics and probability (data analysis). (University of Georgia, National Science Foundation) 