RESUMO
Background: Studies have shown the great importance of early mathematical development as a predictor of subsequent success, which poses the question of how to organize preschool mathematical education with a view to the children's age characteristics, including their cognitive development. In other words, mathematical concepts and actions should be formed with the help of teaching resources appropriate to the child's development. Objective: To determine the effectiveness of three teaching resources (examples, models, and symbols) in formation of the concept of magnitude in older preschoolers (ages 6-7) with different levels of executive function. Design: Four training programs (with 15 twenty-minute lessons each) were developed and conducted in a formative experiment for older preschoolers with different levels of development of executive functions. The lessons addressed the concept of magnitude (length, area, volume), using different types of teaching resources: exemplars (in traditional and game variants), models, and symbols. The total sample of 116 subjects (44% boys) was divided into 4 groups for each of the programs, plus a control group in which no sessions were conducted. The groups were equalized according to the initial level of development of concepts of magnitude and the level of development of executive functions. Results: There was a statistically significant increase in the quality of mastery of the concept of magnitude in three experimental groups ("symbolic," "traditional," and "traditional with imaginary characters") compared with the control group. The formative effect of the "model-building" program showed no significant differences from the effect of the child's natural development (the control group). We also showed that children with a low level of regulation learned mathematical concepts more effectively with the "symbolic" program; children with a medium level of regulation with the "symbolic" and any variant of the "traditional" program; and children with a high level of regulation with the "symbolic" and "model-building" programs. Conclusion: The findings underline the importance of both the type of teaching resources used and the level of development of voluntary regulation, when teaching mathematics to preschoolers.
RESUMO
The BRICS Forum, an independent international organization encouraging commercial, political, and cultural cooperation between Brazil, Russia, India, China, and South Africa, was formed in 2011, and these countries have a significant influence on their regional affairs. These nations were hit by COVID-19 at different times, and all adopted home quarantine to reduce the spread of the virus. We present a comparative analysis of actions of psychology and potential outcomes during the COVID-19 pandemic in BRICS nations regarding five aspects: psychology in health policies, social roles of psychology, socioeconomic context, actions for the general population, and health professionals during stage 1 of the pandemic, and possible actions in stage 2. Various types of actions were taken by psychologists in BRICS, with different levels of coordinated cooperation with respective governmental and non-governmental organizations, multiple and parallel efforts from different scientific societies, and professional regulatory agencies. Scientific societies have had an important role in coordinating some of these efforts, especially because they congregate the psychologists from different parts of these countries, improving communication and access to key information. The aim of these actions varies from improving situational skills and competences to increase the accessibility of psychological services and provide psychoeducation and telepsychology. We will consider the social importance of these actions within these countries as a global opportunity for psychology to stage in a complex context involving human health. The way psychology in BRICS will face this challenging situation is likely to produce important regional influence, stimulate scientific contribution, and increase the accessibility of psychology.
