The aim of this study is to examine the effect of Brain Based Learning on second grade junior high school students" conceptual understanding on polyhedron. This study was conducted by using post-test only control group quasi-experimental design. The subjects of this study were 148 students that divided into three classes. Two classes were taken as sample by using cluster random sampling technique. One of the classes was randomly selected as an experimental group and the other as control group. There were 48 students in experimental group and 51 students in control group. The data were collected with post-test which contained mathematical conceptual understanding on fractions. The post-test consisted of 8 essay question types. The normality and variance homogeny test result showed that the scores are normally distributed and have no difference in variance. The data were analyzed by using one tailed t-test with significance level of 5%. The result of data analysis revealed that the value of t-test = 6,7096 greater than t-table = 1,987, therefore; the null hypothesis is rejected. There is positive effect of Brain-Based Learning on second grade junior students" conceptual understanding in polyhedron. AbstrakPenelitian ini bertujuan untuk mengetahui apakah pemahaman konsep matematika siswa yang dibelajarkan dengan model Brain Based Learning (BBL) lebih baik daripada pemahaman konsep matematika siswa yang dibelajarkan dengan pembelajaran konvensional. Jenis penelitian ini adalah eksperimen semu dengan desain penelitian Post Test Only Control Group Design. Populasi penelitian ini adalah seluruh siswa Kelas VIII SMP PGRI 8 Denpasar Tahun Ajaran 2016/2017 yang terdistribusi ke dalam 3 kelas. Pengambilan sampel dilakukan dengan teknik cluster random sampling untuk memperoleh 2 kelas sebagai sampel penelitian. Data pemahaman konsep matematika siswa diperoleh menggunakan tes dengan bentuk uraian. Data dianalisis menggunakan Ujit satu ekor pada taraf signifikan 5%. Hasil uji hipotesis menunjukkan bahwa t hitung = 6,7096 lebih dari t tabel = 1,987 sehingga H 0 ditolak. Terdapat pengaruh positif dari Brain-Based Learning pada pemahaman konseptual siswa kelas II tentang polyhedron.

The impact of Covid-19 pandemic and the new normal era to the intensity of the use of digital media by the millennial generation were significant increased, this condition was in line with the development of the world of work in the industrial era 4.0 where many permanent workers were replaced by freelancers which caused a change in the mindset of the millennial generation toward job preferences that shifted from formal jobs to digital entrepreneurs. This study aimed to determine the factors that influenced digital entrepreneurs' intentions of digital content creators being able to compete in the digital world. Data was collected through 240 experienced digital content creators. Data analysis was performed by SEM-PLS. The findings of this study indicated that self-efficacy was able to strengthen the influence of entrepreneurship education and public support on digital entrepreneur intention. This research leave a gap for further research to examine more detailed which related to the mindset and behavior of the millennial generation towards work preferences in the digital era. Moreover, Indonesia as a nation was predicted to enter an era of surplus population of working productive age and with this research the government could anticipate the early occurrence of job shortages.