Vocabulary knowledge is one of the most important elements of reading comprehension. Text coverage is the proportion of known words in a given text. We hypothesize that text comprehension increases exponentially with text coverage due to network effects and activation of prior knowledge. In addition, the lexical threshold hypothesis states that…

Providing instruction to students with autism spectrum disorder (ASD) can be challenging for teachers since students can have a range of unique learning needs, particularly in reading comprehension. Given that reading comprehension is a complex process requiring the use of various knowledge and skills simultaneously, many students with ASD often…

For the past five summers, the authors have taught summer school to recent immigrants and refugees. Their experiences with these fourth-grade English language learners (ELL) have taught them the value of using models to build scientific and mathematical concepts. In this article, they describe the use of different forms of 2- and 3-D models to…