This study aims to analyse the improvement of the problems solving abilities by implementing project-based learning with a STEM approach using a distance learning strategy. This research method is a pre-experimental pretest-posttest one group design. The population of this research was the 5th-grade students of Magelang Elementary School in 2019/2020. The sample selection using purposive random sampling with 78 students. The research subjects were elementary school students with symbols A, B, C, and D located in several areas of the City of Magelang, Central Java. Data collection techniques used in this study are tests of problemsolving ability and observation. Quantitative data analysis techniques used were gain normality test and one-sample t-test. The results showed that the problem-solving ability of students increased significantly with a gain factor is 0.44 (enough), a one-sample t-test with a sig (2-tailed) is 0,121 (significantly) and the results of observations of the implementation of learning are 92% (very good). In other words, the project-based learning based on STEM approach with distancing learning strategies could significantly improve students’ problems solving abilities.

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Learning in 21st Century focuses on the development of students learning activities in order to increase their creativity through creative products. This study aims to describe the implementation of Project-based Learning model using STREAM-based approach (Science, Technology, Religion, Engineering, Art, and Mathematics) on students learning activities and the results of creative products made by students. The research method used was descriptive qualitative. The data source was chosen using purposive sampling technique. The research subjects are 3 elementary schools in Banjarmasin city, amounting to 80 students. Data collection techniques were done through observation and product assesment. The results showed that the implementation of the PjBL model using STREAM-based approach had an effect on increasing the result of students learning up to 92.1 (very good), and their activeness in learning activities made them become more creative in designing an interesting product. In this study there were 4 creative products created by the students namely drip irrigation, water cycle, water quality test, and religious-based picture story booklets. The implication of this research is a great opportunity for teachers in elementary schools to use PjBL model using STREAM-based approach in order to increase students’ interest, creativity, and social attitudes in learning.

Pre-service teachers need creative thinking and problem solving skills to support their teaching quality. The aims of this research: (1) problems in science teaching, creative thinking and problem solving skills of pre-service teachers; (2) improvements of creative thinking and problem solving skills of pre-service teachers through Ethno-SETSaR Science Teaching Approach, and (3) relationship pattern of critical thinking and problem solving skills. The research method applied in this study was sequential exploratory mix method. The research design consisted of five stages: 1) qualitative data gathering; 2) qualitative data analysis; 3) quantitative data gathering; 4) quantitative data analysis and 5) data interpretation. The subjects of this research were 80 pre-service teachers from two universities. The research instruments were essay tests of creative  and problem solving skills. The data analysis used was independent T Test. It could be concluded from qualitative study that science teaching practice was still oriented on content knowledge mastery. It did not improve creative thinking and problem solving skills. Science teaching with Ethno-SETSaR approach was applied as foundation to quantitative study. The result of quantitative study was there was difference in creative thinking and problem solving skills of pre-service teachers. The pre-service teachers enrolling science teaching with Ethno-SETSaR approach had higher scores. There was correlation of creative thinking affecting problem solving skills.

Assessment of problem-solving skills for preservice teachers is important in science instruction. The purpose of this study is to discover; (a) How are the characteristics of the Problem-Solving Essay Test Instrument (PSETI); (b) How is the validity based on experts assessment; (c) how are the validity and reliability based on trials. The research method is research and development. The study covers three stages, those are (1) planning the test, (2) trying out the test, (3) determining the validity, and the reliability. The sample of this study was 80 preservice elementary school teachers of basic science concepts. The PSETI is in the form of an essay test, consisting of 19 items. The essay test contains ethnoscience problems. Content validity based on the Aiken index is 0.84 with a good validity level. The results of the development of the PSETI instrument show 19 items met the validity and reliability of the 21 items/ compiled. The PSETI is an essay test with the scoring which is using a partial credit model based on the three categories in the polytomous data. Instrument reliability was 0.77 and it was concluded that the instruments were good to measure problem-solving skills of preservice teachers in science learning context ethnoscience.