Cardenas, S., (August 2003). "Safety In the Science Classroom, the Texas Hazard Communication Act." Brownsivlle ISD Secondary Science Inservice Training. Brownsville, TX.

Cardenas., Gonzalez, K., Rudnik, P., Smith, L., & Villafuerte, T. (August 2002). "Introduction to Inquiry." Brownsville ISD Secondary Science Teacher Inquiry Institute. Brownsville, TX.

Cardenas, S., (June 2002). "Effective Questioning Strategies for Science Teachers." Brownsville ISD Summer Teacher Institute. Brownsville, TX.

Cardenas, S., Harper, K. & Paredes, N. (November, 2001). "How to Implement a Successful Middle School Advisory Program." National Middle School Conference. Washington, D.C.

Cardenas, S. (February 2001). "Distance Learning: Get On the High Way to Learning." Texas State "Gaining Early Awareness and Readiness for Undergraduate Programs" (GEARUP) Conference. Denton, TX.

Cardenas, S., & Rentfro, R. L. (December 2000). "Interdisciplinary Secondary Science with Depth and Complexity." Texas Association for the Gifted & Talented State Conference. Houston, TX.

Cardenas, S., (October 2000). "Scholarliness." Region One Education Service Center Administrator's Conference. Edinburg, TX.

Cardenas, S., (June 2000). "Promoting High-End Learning Through the Use of Science Texas Essential Knowledge and Skills (TEKS)." Texas State Demonstration School. Midland, TX.

Cardenas, S., (October 1999). "Science Instructional Strategies and the Texas Essential Knowledge and Skills. Texas State Mentor Middle School Conference. San Antonio, TX.

Cardenas, S., Lewis, R., (April 1999). "Interdisciplinary Instruction with Depth & Complexity." Texas State Middle School Conference. Austin, TX.