Reading Fluency is a key skill that is classified as the bridge to comprehension and overall factor in student academic achievement. While the official language of Belize is English, the vast majority of Belizean Students are English Language Learners (Handbook of Policies and Procedures, 2000). Therefore, they may be at a disadvantage if they are not reading fluently as they enter First Form or high school. The purpose of this study was to examine the effectiveness of matching the evidence-based reading instruction strategy of 'Readers Theatre' with the use of TikTok videos in improving the oral reading fluency of First Form students. A quazi-experimental pre-post study design was implemented to hypothesize the effect of Traditional Readers' Theatre and Readers' theatre paired with TikTok on reading fluency scores of First Form high school students after a 10-week intervention. The data was analysed using IBM SPSS Statistical Software version 29. Both descriptive and inferential statistics were computed. The results of the analysis of Covariance (ANCOVA) was used to answer research question 1 and 2 to observe if there was a significant difference in reading fluency post-test scores between those students who received reading instruction through Traditional Readers' theatre and Readers' theatre paired with TikTok versus those who did not, controlling for the pre-test scores. Secondly, if there was a significant gender instruction mode interaction among males and females who were engaged in the Traditional Readers Theatre and Readers' theatre paired with TikTok intervention versus those who did not, after controlling for pre-test scores. The research study concluded that Readers' theatre paired with TikTok reading fluency intervention had a significant positive effect on students reading fluency. Recommendation for policy, practice, and future research are suggested. [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://bibliotheek.ehb.be:2222/en-US/products/dissertations/individuals.shtml.]