This podcast examines Language Essentials for Teachers of Reading and Special (Lexia) or LETRS. I wanted to find the “reliable, trustworthy, and valid evidence” that “has demonstrated” that LETRS had “a record of success in increasing students' reading competency in the areas of phonological and phonemic awareness, phonics, vocabulary development, reading fluency, and reading comprehension”. I was eager to start reading all the research showing that LETRS professional development had a demonstrated record of success in increasing students’ reading competency. Specifically, I was looking for three things:

1. A vast, interdisciplinary body of scientifically-based research linking LETRS to improved teaching performance.

2. A vast, interdisciplinary body of scientifically-based research linking LETRS to improved student reading outcomes.

3. A vast, interdisciplinary body of scientifically-based research providing evidence that LETRS was more effective than other types of professional development in improving teacher performance or student reading outcomes.