摘要:Mathematics teachers’ perceptions and awareness of different kinds of assessments (e.g., diagnostic, formative, and summative assessments) may affect their classroom practices. In this context, the current study explored mathematics teachers’ perceptions and self-reported practices teaching mathematics for Trends of International Mathematics and Science Study (TIMSS) in Abu Dhabi schools in the United Arab Emirates. A teacher perception questionnaire was designed, then was administered to 522 mathematics teachers in Abu Dhabi schools in the academic year 2020–2021. A One-Sample t-test, Independent Sample t-test, and ANOVA tests were performed for the four-component variables of teacher perceptions, namely, teachers’ perceptions of TIMSS, their instructional practices in relation to TIMSS, the readiness of students for TIMSS, and the school and classroom environment for TIMSS. The results showed no statistically significant difference between male and female teachers in mathematics teaching practices with a focus on TIMSS or their perceptions of student readiness for TIMSS; however, there were differences in their perceptions of the school and classroom environment that were statistically significantly. In addition, there was no statistically significant difference between public and private schools in the practice of mathematics teachers for TIMSS, while the difference was statistically significant on views regarding student readiness for the TIMSS as well as on the school and classroom environment. The findings of the present study have both pedagogical and policy implications, which are discussed at the end of this paper.