درخت حوزه‌های تخصصی

The research was conducted with the aim of identifying the drivers and obstacles for the professional development of elementary school principals. The current research is qualitative study. The statistical population was the principals of public elementary schools. Using the purposeful snowball sampling method, 22 school principals from the education districts of Tehran were selected as a sample, and the theoretical saturation of the data was observed in the interview of the 20th person. A semi-structured interview was used as a tool. The data was analyzed by theoretical coding (Open, axial and selective coding) according to the answers provided to the three research questions. In the review of the current situation of the professional development of principals, 5 components were obtained, regarding factors affecting the professional development of Principals, 9 components were obtained, and in the review of obstacles to the professional development of Principals, 3 components were obtained. Based on the results of the research, it was found that the principals of educational institutions are facing issues and problems, which, by solving them, helped the professional development and capabilities of the principals. Finally, professional development indicators were presented in 5 scientific, skill, organizational, personal and cultural-social sectors.

The importance of mathematics is common knowledge, and teachers have always been concerned with teaching this subject correctly and efficiently. For this reason, teaching mathematics should be given special attention, and even the base and frameworks should be provided for online teaching of this subject. This study aims to introduce mathsframe.co.uk as a platform for online teaching of mathematics. The present study tried to turn the challenges facing online mathematics teaching into opportunities for better instruction. The method of research was descriptive and a case study (in-depth). The facilities and games of the website were divided into categories of Most popular free mathematics games, Tablet friendly games, Word problems, Using a calculator, Money, Sorting and classifying, National curriculum, Addition and subtraction, Fractions, decimals and percentages, Measuring and time, Partitioning, place value and rounding, Latest mathematics games, Multiplication and division, Ordering, comparing and reading numbers, Geometry, Statistics and ITPs. There are games and options in these categories which are suitable to teach and exercise subjects like money, reading and working with different types of charts, numbers divisible to a certain number and prime numbers, decimals, measuring angles, numbers axis, exercising and learning different math operations, multiplication table, comparing numbers, showing the number of shapes and categories, counting numbers, place value chart, measuring volume, ratio, possibility, fraction, the method of transferring numbers in technical addition and subtraction, symmetry, measuring mass and temperature, coordinates, clock, working with a ruler, volume and perimeter. Many math instruction games and options complementary to teachers' teaching are free, and there is no need for signing up, entering information or paying a fee; but a basic knowledge of English is required for teaching or exercising elements of the categories.