The purpose of this study is to determine the teaching, curriculum, and methods used by teachers in the science learning process for students with special needs in Indonesia. We use qualitative research methods. The subjects in this study are students with special needs (children with visual impairments, children with hearing impairments, children with intellectual disabilities, and children with physical impairments) at one of the special schools (SLB) in Kuningan, Indonesia. The results show that most of the teachers use the curriculum from teacher books provided by the government. In addition, some teachers used the lecture and question and answer method in the science learning process. The results in low student achievement because students with special needs need concrete media and methods that accommodate student needs.
The purpose of this study was to demonstrate the adsorption of dye on carbon microparticles. We conducted two experiments: Understanding of the adsorption of dye on carbon microparticles. We used turmeric solution as a model of dye, in which this solution was contacted into commercially available carbon microparticles in the batch-typed adsorption reactor. The measurement results were then compared to several adsorption isotherm models, such as Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich models; and finding teaching strategies to improve students’ understanding on the adsorption concept to students with special needs. As for the second part which is finding strategies to teach the obtained results and their concept of adsorption to students with special needs, we evaluated the strategies to eight students with intellectual disabilities in special schools in Kuningan District, Indonesia using a Single Subject Research method (equipped with pre-test, post-test, and experimental demonstration). The results showed that carbon can absorb dye and can be used as an alternative for wastewater treatment. The isotherm models have the linearity parameter R2 of above 50%, and the most suitable model is Freundlich. The models also confirmed favorable adsorption with multilayer structure and physical interaction between turmeric and carbon microparticles. Demonstrating experiments and informing the measurement results gave great impacts on students’ comprehension, in which they have better understanding about the concept of adsorption compared to the conventional teaching method.
The objective of this study was to investigate isotherm adsorption of carbon microparticles from pineapple peel waste. Carbon microparticles were prepared by carbonizing pineapple peel waste at 215-250°C and grinding using a saw-milling process. To investigate adsorption properties of carbon microparticles, experiments were done by evaluating adsorption of curcumin (as a model of adsorbate) in the ambient temperature and pressure under constant pH condition. To confirm the adsorption characteristics, carbon particles with different sizes (i.e., 100, 125, and 200 ?m) were tested, and the adsorption results were compared with several standard isotherm adsorption models: Langmuir, Freundlich, Temkin, and Dubinin- Radushkevich. To support the adsorption analysis, several characterizations (i.e., optical microscope, sieve test, and Fourier transform infrared analysis) were conducted. The adsorption test showed that the adsorption profile is fit to the Freundlich model for all variations, indicating the multilayer adsorption process on heterogeneous surfaces and interactions between adsorbate molecules. The results from other isotherm models also confirmed that the adsorption process occurs physically via Van der Waals force in binding adsorbate on the surface of adsorbent.
The purpose of this study was assess of mathematical abilities of students with intellectual disabilities during the CoVID-19 Pandemic. The subjects of this study were 5 children with intellectual disabilities in a special school, in West Java, Indonesia. The method used descriptive quantitative method. The stages of the activity process carried out were by formulating instruments, determining subjects, conducting assessments, and analyzing data. Differences in assessment during the pandemic involved teachers and parents. The results showed that most students with intellectual disabilities have problems in the aspect of mathematical abilities. This is because students with intellectual disabilities had problems understanding abstract and complex concepts. They had problems in various aspects of perception. In the learning process, students with intellectual disabilities needed concrete media. Concrete media made it easier for students to understand learning material, especially students with intellectual barriers who are at the concrete learning stage. The results of the assessment used as the basis for making mathematics learning programs for students.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.