Pengaruh Model Pembelajaran Kooperatif Tipe Team Assisted Individualization Dan Self-Efficacy Terhadap Kemampuan Pemecahan Masalah Fisika Siswa Di MTs N Kota Jambi

Mathematical problem-solving skills in learning physics is important. According to the preliminary study conducted at MTsN Jambi, it is known that the mathematical problem solving ability of students in learning physics still low. This study aims to improve the mathematical problem solving capability by applying the team assisted individualization and self-efficacy cooperative learning model. This study was experimental research by using questionnaire self-efficacy instrument and essay test. The population of this study was seventh grade students MTsN Jambi. Data analysis was performed by using two ways-ANOVA and Tukey test. The results shows that: (1) cooperative learning model of TAI influences to students' physical problem solving capability, (2) SE influences the students' physical problem solving capability, (3) there are differences in high SE students' physical problem solving capability by using cooperative learning model type TAI from those who using conventional learning models, (4) there are differences in low SE students' physical problem solving capability by using cooperative learning model TAI type than those using conventional learning model, (5) there is no interaction between the cooperative learning model of TAI and SE of students in MTsN Jambi

Investigasi Pengetahuan, Keterampilan Dan Implementasi Teknologi Informasi Dan Komunikasi (TIK) Guru Matematika SMA/MA Di Kabupaten Tanjung Jabung Barat

The development of science and information technology has changed paradigm of learning from conventional (teacher – centered) to a learning based on information and communication technology (ICT). This shift affects the teacher roles from information resources and expert in conventional teaching into facilitator, guidance an organizer in multimedia based teaching. Therefore, teachers should be able to utilize and integrate ICT. So, teachers have to have knowledge, skills and able to implement ICT in the teaching of their subjects. The purposes of this research are to measure ICT knowledge, skill and its implementation in mathematics teaching and to identify factors and obstacles affecting math teachers use ICT in the classroom of senior high school in Tanjung Jabung Barat. The method of this research is quantitative research by using descriptive analysis. Data were collected using questionnaire of teachers knowledge, skill and implementation ICT. The research populations are mathematics teachers of senior high school in Tanjung Jabung Barat and all are as the sample of this research. This is because the total populations are relatively small. The result of this research showed that the levels of teacher's knowledge and implementation are both ‘low', while teacher skill is at ‘medium' level. From the background of respondents involving the status of civil servant, experience, gender, age and workshop or ICT course, it seems doesn't effect the teachers competence. The obstacles that affect teacher in using ICT for teaching is lack of ICT facilities at school

Analisis Pedagogical Content Knowledge (PCK) Guru MIPA Di SMA Negeri 11 Kota Jambi

This research is descriptive qualitative research. the purpose of this research is to analyse the pedagogical content knowledge of science\u27s teachers SMA Negeri 11 Kota Jambi, by using purposive sampling technique consist of nine teachers, they are two chemistry teachers, three biology teachers, three mathematics teachers and one physic teacher ware taken as a research subject are categorized as experienced, teachers who are competent in their field base on their educational background. Data collection was conducted a questionnaires reseach instruments by using a Likert scale measurement, then followed by interviews to a mathematics teacher, a physic teacher, a biology teacher and a chemistry teacher which is reinforced by chech of documents and field observations. The result showed that teacher\u27s knowledge of pedagogical content knowledge still low, it can be seen from the seven aspects of PCK teachers only four aspects that can be mastered by the teacher, they are knowledge learning strategies, knowledge of the subject matter and education learning, knowledge of communication with learners and knowledge of assessment and evaluation. three of PCK teachers who still don\u27t understand yet are knowledge of learners and their characteristics, knowledge of curriculum development and knowledge of potential learners development

Soil fertility controls soil–atmosphere carbon dioxide and methane fluxes in a tropical landscape converted from lowland forest to rubber and oil palm plantations

Expansion of palm oil and rubber production, for which global demand is increasing, causes rapid deforestation in Sumatra, Indonesia, and is expected to continue in the next decades. Our study aimed to (1) quantify changes in soil CO2 and CH4 fluxes with land-use change and (2) determine their controlling factors. In Jambi Province, Sumatra, we selected two landscapes on heavily weathered soils that differ mainly in texture: loam and clay Acrisol soils. In each landscape, we investigated the reference land-use types (forest and secondary forest with regenerating rubber) and the converted land-use types (rubber, 7–17 years old, and oil palm plantations, 9–16 years old). We measured soil CO2 and CH4 fluxes monthly from December 2012 to December 2013. Annual soil CO2 fluxes from the reference land-use types were correlated with soil fertility: low extractable phosphorus (P) coincided with high annual CO2 fluxes from the loam Acrisol soil that had lower fertility than the clay Acrisol soil (P < 0.05). Soil CO2 fluxes from the oil palm (107.2 to 115.7 mg C m−2 h−1) decreased compared to the other land-use types (between 178.7 and 195.9 mg C m−2 h−1; P < 0.01). Across land-use types, annual CO2 fluxes were positively correlated with soil organic carbon (C) and negatively correlated with 15N signatures, extractable P and base saturation. This suggests that the reduced soil CO2 fluxes from oil palm were the result of strongly decomposed soil organic matter and reduced soil C stocks due to reduced litter input as well as being due to a possible reduction in C allocation to roots due to improved soil fertility from liming and P fertilization in these plantations. Soil CH4 uptake in the reference land-use types was negatively correlated with net nitrogen (N) mineralization and soil mineral N, suggesting N limitation of CH4 uptake, and positively correlated with exchangeable aluminum (Al), indicating a decrease in methanotrophic activity at high Al saturation. Reduction in soil CH4 uptake in the converted land-use types (ranging from −3.0 to −14.9 μg C m−2 h−1) compared to the reference land-use types (ranging from −20.8 to −40.3 μg C m−2 h−1; P < 0.01) was due to a decrease in soil N availability in the converted land-use types. Our study shows for the first time that differences in soil fertility control the soil–atmosphere exchange of CO2 and CH4 in a tropical landscape, a mechanism that we were able to detect by conducting this study on the landscape scale