Sandra Martin is the author of the highly read Breaking the "Sound" Barrier to Fluent Reading, a curricular reading/spelling intervention designed to reach the at-risk learner. Sandra has been a teacher and curriculum developer for 38 years in the Conewago Valley School District and for Dickinson College, PA and is a guest writer for the Teachthought educational community. Sandra's three Breaking the "Sound" Barrier books have been a part of university-backed research that demonstrated their positive role as reading/spelling interventions in the classroom. Sandy also authored Mathopedia Levels 1 and 2, mathematical encyclopedias that assist students with the basics of mathematics.
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