Effects of direct instruction of visual literacy skills on science achievement when integrated into inquiry learning.

摘要

Understanding of visual representations is a pivotal skill necessary in science. These visual, verbal, and numeric representations are the crux of science discourses "by scientists, with students and the general public" (Pauwels, 2006, p.viii). Those who lack the understanding of these representations see it as a foreign language, one that they have never been taught to interpret. Roth, Bowen and Masciotra (2002) assert that students lack the necessary preparation to interpret scientific representational practices thoughtfully and skillfully and are not equipped to decipher the combinations of "divergent representational systems (graphs, images, equations) in a meaningful and edifying whole" (Pauwels, 2006, p.x). Several studies confirm that when students are unable to retrieve and apply knowledge, they will have difficulties with problem solving, critical thinking, and learning new material; moreover this has been demonstrated among all ability levels (O'Reilly & McNamara, 2007).;The purpose of this mixed method case study was to explore the use of deliberate instruction of visual literacy skills embedded within inquiry science learning, utilizing the TLC method, for middle school students in a single classroom. Pre- and post-testing, teacher interviews and classroom observations were utilized. The study had three phases pre-implementation, implementation of TLC, and post implementation. The analysis was based on the Embedded Experimental Model. "This model is defined by having qualitative data embedded within an experimental design" (Creswell, 2007, Loc 806 of 3545). The 7th grade science classes studied are dual language immersion with 93% Hispanic and 100% economically disadvantaged students. These classes were taught by a single teacher where native Spanish speakers were taught in Spanish and English speakers were taught in English.;The data for final test scores for students taught in English (English speakers, and EL exited) resulted in t (21)=5.42, * p≤.05; and for students taught in Spanish (EL) resulted in t (43)=10.29, *p≤.05. For these findings the following conclusions were made: Evidence from the t-test analysis suggests that increasing the focus of visual literacy skills increases student achievement on pre- and post-tests with both native English speakers as well as English learners.