Thanks for providing that. It definitely is troubling. Although, looking at the report, it's not 100% clear to me that they're distinguishing between students being paddled and students being inappropriately restrained. The later is definitely troubling, as well, but would seem to me to be lack of proper training rather than a clear intent to perpetrate violence against children.
This quote is, at best, misleading. Although their are more total students subjected to corporal punishment in Texas than the other states, Texas also has far more students than the other states listed. That number represents barely 1% of Texas students. Too much, definitely, but Texas is not the worst offender. The actual ACLU report gives the real ranking as: Mississippi (7.5%), Arkansas (4.7%), Alabama (4.5%), Oklahoma (2.3%), Tennessee (1.5%), Georgia and Texas (1.1%), Missouri (.6%), and Florida (.3%).