Currently research focused on the area of teaching Chemistry has sought strategies and tools to improve the students' learning process. The use of playfulness has been one of the resources widely used by researchers and teachers in the classroom. When choosing games as an evaluative tool, the teacher can find it easier to identify students' difficulties, in addition to relaxing the way students are evaluated. The objective of this study was to develop a didactic game with the purpose of teaching the content of "collective properties", justifying it by the lack of games and research aimed at teaching Physics-Chemistry of Solutions. After construction, the game was applied to two classes in the second year of high school, in two different schools. In order to evaluate the application of the game, semi-structured questionnaires were used, which contained questions about the students' opinion about the use of didactic resources, such as the educational game. Through the analysis of the questionnaires answered by the students, it can be verified that after using the game, there was progress in the constitution of their knowledge, in addition to confirming that they approved the use of this resource in the teaching of collective properties. From this research it can be concluded that games are a great choice to be used in classes, being valid as a didactic resource, as it stimulates, motivates students, increases concentration and promotes group discussions and interactions. Al elegir los juegos como herramienta de evaluación, el maestro puede encontrar más fácil identificar las dificultades de los estudiantes, además de relajar la forma en que los estudiantes son evaluados.

Special Education is a type of education, preferably offered in the regular school system, with the teacher being one of those responsible for ensuring the student's learning Target Public of Special Education (PAEE), but for that it is necessary to experience both initial and continued within that theme. Thus, the aim is to investigate the need and interest of undergraduate students of natural science courses to pursue continuing education in Special Education after the end of the undergraduate course. This is a qualitative study that used the questionnaire as a data collection tool, applied to 133 undergraduate students. The data were analyzed using Textual Discursive Analysis. It is noticed that the majority of undergraduate students believe that their initial training course does not prepare them to develop curricular adaptation with PAEE students. As well as, they show interest in continuing training on the subject. However, it is highlighted that the continuing education courses in the perspective of Special Education focus on discussing aspects related to the pathology of disability, as well as pedagogical practices. We emphasize that teacher training must go beyond these aspects, promoting the discussion of students' development, preparing the teacher to make use of his potentialities in the teaching and learning process.

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The use of pesticides has been intensified to meet market demand. Brazil is the largest sugar cane producers in the world and one of its forms of consumption is raw cane juice popularly known as garapa. There is no legislation in the country that addresses parameters for the determination of pesticides in the sugarcane juice, therefore the marketing of the drink does not follow any quality control. The objective of this research was to evaluate the use of the Liquid-Liquid Extraction with Low Temperature Partitioning (LLE-LTP) method in relation to the selectivity, applicability, and effect of the addition of sodium chloride to determine the pesticide carbofuran in sugarcane juice and subsequent analysis of real samples of sugarcane juice sold in the city of Itumbiara -GO. This method is simple and effective, consuming small amounts of solvents and has advantages over other extraction techniques, such as practicality and low consumption of sample and organic solvent. The percentage of carbofuran extraction by (LLE-LTP) was 96.94-102.68% with coefficients of variation below 2.0%. The addition of sodium chloride did not show a statistically significant change in the percentage of carbofuran extraction. Samples of the sugarcane juice acquired in the Itumbiara -GO, submitted to the optimized method did not present any carbofuran residues.

Trata-se de uma proposta de ensino em que a contextualização e o trabalho interdisciplinar a partir da temática alimentação saudável pode servir como articuladora de relações entre diferentes áreas do conhecimento em ciências e matemática. Utilizando os três momentos pedagógicos de Delizoicov e levantamento de questões sócio científicas (QST), os alunos serão levados a refletirem sobre suas escolhas e pensarem alternativas para se buscar uma alimentação mais saudável. A oficina pedagógica pode ser desenvolvida em diferentes espaços pedagógicos seja em sala de aula ou laboratórios para ensino de ciências e várias estratégias didáticas são propostas, como a utilização de vídeos educativos, análise crítica de artigos científicos, sala de aula invertida e aulas experimentais. Desta forma, acreditamos que este trabalho possa ser de extrema importância para a área do ensino de ciências, pois apresentamos sugestões de como se pode trabalhar diferentes conteúdos de ensino com determinado tema de uma maneira interdisciplinar e em escala macroscópica por meio do desenvolvimento Da experimentação e protagonismo do aluno.