Today's classrooms have a significant diversity of learners who are expected to engage in similar academic activities and meet common standards of academic competency irrespective of their individual differences. As a result, for many students, school is a challenging endeavor that elicits emotional responses ranging from low self-efficacy to frustration, stress and anxiety. Research has shown that factors such as students' motivation and teachers' beliefs are important influencers of classroom achievement. These factors determine students' persistence towards their academic goals as well as the standards teachers set. This report reviews the literature on major constructs of motivation and teacher beliefs specifically with different learners, that is second language learners and students with learning disabilities. A proposal of a synthesis model is offered, with the primary objective of depicting the influence of teacher beliefs and student motivation on learning process and performance outcomes among different learners. / text