This study explored how science teachers and school administrators perceive the use of the affective domain during science instruction situated within a high-stakes testing environment. Through a multimethodological inquiry using phenomenology and critical ethnography, the researcher conducted semi-structured interviews with six fifth-grade science teachers and two administrators from two Texas school districts. Data reconstructions from interviews formed a bricolage of diagrams that trace the researcher's steps through a reflective exploration of these phenomena. This study addressed the following research questions: (a) What are the attitudes, interests, and values (affective domain) that fifth-grade science teachers integrate into science instruction? (b) How do fifth-grade science teachers attempt to integrate attitudes, interests and values (affective domain) in science instruction? and (c) How do fifth-grade science teachers manage to balance the tension from the seeming pressures caused by a high-stakes testing environment and the integration of attitudes, interests and values (affective domain) in science instruction? The findings from this study indicate that as teachers tried to integrate the affective domain during science instruction, (a) their work was set within a framework of institutional values, (b) teaching science for understanding looked different before and after the onset of the science Texas Assessment of Knowledge and Skills (TAKS), and (c) upon administration of the science TAKS--teachers broadened their aim, raised their expectations, and furthered their professional development. The integration of the affective domain fell into two distinct categories: 1) teachers targeted student affect and 2) teachers modeled affective behavior. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800)1-800-521-0600. Web page: http://www.proquest.com/en-US/products/dissertations/individuals.shtml.]