American Federation of Teachers president Randi Weingarten visited two La Joya Independent School District campuses Wednesday during a statewide tour.
Weingarten said the visit is meant to gauge what school districts in the Valley need in order to produce more graduates.
"We shouldn't be creating a system of winners and losers," she said.
She believes is happening to public schools in Texas.
The longtime educator said Texas school don't have enough funding.
All of it pitting charter schools against public schools.
"We need to have a public system that can actually help all students achieve their dreams," she said.
Weingarten spoke with students at the Thelma R. Salinas Early College High School.
"By the time I leave school, I'll have an associate degree in computer science," STEM student Francisco Ybarra said.
He is like many students in the Valley who come from middle to low income families.
He said education is his ticket out.
But educating students like Ybarra can be hard when teachers in Texas do with less financial resources.
The Lone Star State is among the states in the country that spend the least on students.
Some experts say public education funding in Texas is so bad, it makes it impossible for districts to meet tough curriculum standards.
"The notion of undermining education is just wrong," Weingarten said.
She hopes her tour will bring awareness to the funding issue.