https://childmind.org/article/classroom-anxiety-in-children/
https://childmind.org/article/how-anxiety-leads-to-disruptive-behavior/
http://www.interventioncentral.org/behavioral-interventions/challenging-students/teacher-behavioral-strategies-menu
https://www.edutopia.org/blog/big-and-small-classroom-management-strategies-todd-finley
http://ceedar.education.ufl.edu/wp-content/uploads/2014/09/Handout-16-Function-Based-Intervention-Strategies.pdf
https://www.helpguide.org/articles/add-adhd/teaching-students-with-adhd-attention-deficit-disorder.htm
http://www.interventioncentral.org/behavioral-interventions/challenging-students/what-every-teacher-should-know-about%E2%80%A6punishment-techni