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Researchers and practitioners indicate students require explicit instruction on mathematics vocabulary terms, yet no study has examined the effects of an embedded vocabulary component within mathematics tutoring for early elementary students. First-grade students with mathematics difficulty (MD; n = 98) were randomly assigned to addition tutoring with an embedded vocabulary component, addition tutoring without the embedded vocabulary component, or business-as-usual control. At posttest, students who received addition tutoring without vocabulary demonstrated greater gains than control students on addition fluency. On a measure of mathematics vocabulary, students in the active tutoring conditions demonstrated improved performance on mathematics vocabulary over control students. Results indicate that exposure to addition tutoring with or without an embedded vocabulary component positively improves mathematics vocabulary performance.
Powell et al. (Wed,) studied this question.