TISD STEM Teachers to Now Receive National Certification Texarkana Independent School District continues to focus on quality learning and support excellence in STEM education. “The world and education continue to change at a rapid pace, and it is more important now than ever before that our students are prepared to use knowledge and skills to solve problems, make sense of information and gather and evaluate evidence to make decisions,” said Holly Tucker, TISD Chief Academic Officer in a press release. TISD To that end, TISD STEM teachers will now move forward in earning a nationally recognized STEM Teaching Certification through the National Institute of STEM Education (NISE). This national level certification uses a competency-based, academic coach-led online learning platform where educators produce a portfolio of work that demonstrates proficiency across 15 STEM teacher actions essential to STEM learning.