This research used a mixed methodology to explore elementary teachers' perceptions concerning giftedness and non-English-speaking students. The researcher surveyed Kindergarten through Grade 3 teachers on their perceptions and instructional practices about giftedness in elementary students. Participants were derived from mid- to large-size school districts with diverse populations. Descriptive data were gathered through collecting survey data from Likert-scaled questions. Data were gathered to determine teacher efficacy, which includes student engagement, instructional practices, and classroom management. In addition, interviews of teachers in Kindergarten through Grade 3 were conducted to evaluate how teacher belief systems impact the identification of potentially gifted students and their personal views and behaviors of instructional practices, especially concerning giftedness. The under-representation of students from diverse cultural backgrounds is well documented in the literature. This study aimed to analyze the data to determine the presence of a cause-and-effect connection between teacher efficacy and their beliefs regarding nurturing giftedness in students across diverse cultural backgrounds. The State of New Jersey recently readopted Chapter 15, Bilingual Education with amendments to key definitions within the current statute (N.J. Department of Education, Division of Supplemental Education Programs, November 2022). According to N.J.A.C. 6A:15, the term "English Language Learner" (ELL) has been replaced by "Multilingual Learner" (ML). According to the New Jersey Department of Education, a multilingual learner is defined as a student whose primary language is not English and who is developing proficiency in multiple languages (N.J.A.C. 15-1.2, 2022). This adoption and other amendments to the existing statute became effective for the School Year 2023-2024. This research study was conducted before the adoption of the term "multilingual learner," as described by N.J.A.C. 15-1.2. Therefore, any notation of English Language Learner or English Learner as cited in this research study refers to a multilingual learner. [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.bibliotheek.ehb.be/en-US/products/dissertations/individuals.shtml.]