Abstract
This study's aim was to examine the influence of a unique intervention program based on emotional self-awareness and the development of emotional regulation as an important component of SEL combined with metacognitive awareness. Seventy-two third-year preservice teachers participated for one year, tutoring a mathematically challenged student. This intervention was applied to an experimental group where each participant learned to assess his/her emotional state using a special ruler prior to teaching a lesson, and according to the ruler's assessment results, the preservice teacher was assisted by a variety of emotional regulations as well as metacognitive strategies. A control group learned only metacognitive strategies. This study's results indicated that experimental group participants showed notable improvement in cognitive reappraisal post-intervention compared to the control group, which showed no change. For metacognitive awareness, in both research groups, an increase was apparent post-intervention. Nevertheless, a comparison of the effect size of differences between the two measurement points indicated that the experimental group exhibited a greater improvement in metacognitive regulation compared to the control group. A significant positive correlation was found in the experimental group between cognitive reappraisal and metacognitive regulation. Assimilation and training of emotional skills among preservice teachers during training are necessary.