TEA has released examples and clarification on supplemental aids for the 2018 testing cycle. Student eligibility criterion:
A student may use this designated support if:
he or she routinely, independently, and effectively uses it during classroom instruction and classroom testing.
Below are the links for the documentation.
2018 Supplemental Aids for STAAR: What is Allowed and What's Not?
2018 Mathematics Manipulatives
2018 Supplemental Aids