Sources
Overton, T. (2012). Assessing learners with special needs: An applied approach. (7th ed.). Upper Saddle River, NJ: Pearson.
Weaver, B. (n.d.). Retrieved from http://www.scholastic.com/teachers/article/formal-versus-informal-assessments
Weaver, B. (n.d.). Retrieved from http://www.scholastic.com/teachers/article/formal-versus-informal-assessments