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Curriculum Based Measurement (CBM) is a supervision method of student’s educational achievement through direct assessment of predicted skills in the curriculum. Although almost half a century passes from the introduction of CBM in the world, however it has not been considered in Iranian curriculum. So, the aim of this research was to introduce and investigate the impact of CBM on math achievement of elementary students in comparison with conventional methods of formative evaluation. The present study based on the goal is applied research and in term of data collection is quasi experimental method with control group and pretest for a sample of 3rd grade elementary students. Results of Analysis of Covariance showed that CBM has significant effect on elementary students’ math achievement. Based on this research results, it is recommended that CBM is used in elementary curriculum as a more effective method of formative evaluation.

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  The purpose of this research was to employ a mixed method of convergent triangulation design to evaluate the seventh-grade math curriculum. qualitative phase of  study was a case study, whereas quantitative stage was an evaluation study with the CIPP model. research population consisted of  seventh-grade female mathematics teachers and students of Islamshahr. purposeful sampling method was a strategy to collect qualitative data through a semi-structured interview in the qualitative inquiry, while multistage random cluster sampling was running to fill questionnaires and analyzing final exams in the quantitative study. results showed that quality of the context is high and desirable, where the condition of input is low and unsuitable. Moreover, the quality of the process and product was acceptable from the teachers and students' points of view. In addition, analyzing mathematics examinations indicated that the knowledge of students is insufficient, while they did not also have a positive attitude towards mathematics.