Education is a key to a successful life for all human beings. Having a good education certainly helps people to have a better life and improve their living standard. Therefore, education should be continually conducted meaningfully to enhance students’ competence. However, carrying out effective learning and appropriate classroom assessment during the coronavirus pandemic could be highly challenging for the teachers to do. Teachers need to utilize various technological devices to assess students' learning competence. This is due to online learning has become a priority in learning activities in the pandemic situation. Consequently, teachers must have broader horizons on how to conduct the learning processes and appropriate assessment strategies and operate various communication technologies. This study found that English teachers implemented three types of online assessment strategies to improve students' learning competence during the pandemic of Covid-19 in Indonesia. Those strategies are online test administration, portfolio, and self-assessment. Several challenges were accoutered by the teachers in carrying out the classroom assessment through online systems such as slow internet network, expensive internet quota prices, limited access to computer and smartphone devices, poor ability in using digital technology, difficulty in conducting effective interaction. Feedback was occasionally provided when the learning processes were conducted through zoom meeting or google meet. The study implies that teachers should improve their communication technology ability and fulfill online assessment strategies' administrative procedures.

Penelitian ini bertujuan untuk mendeskripsikan pengaruh pembelajaran dengan pendekatan Brain-Based Learning (BBL) terhadap kemampuan komunikasi matematis (KKMAT) dan self-efficacy siswa. Penelitian ini merupakan penelitian eksperimen semu menggunakan desain grup kontrol tidak secara acak dengan pemberian tes awal dan tes akhir. Populasi penelitian ini adalah seluruh siswa kelas XI IPA SMA Negeri 1 Jetis Daerah Istimewa Yogyakarta pada semester kedua tahun ajaran 2012/2013 yang terdiri atas tiga kelas. Dua kelas dipilih sebagai sampel penelitian, yaitu kelas eksperimen dan kelas kontrol. Instrumen yang digunakan dalam penelitian ini adalah tes KKMAT dan skala self-efficacy. Data penelitian dianalisis menggunakan uji t dan uji multivariat (MANOVA). Hasil penelitian ini menunjukkan bahwa pembelajaran dengan pendekatan BBL berpengaruh terhadap kemampuan komunikasi matematis dan self-efficacy siswa.Kata Kunci: Pendekatan Brain-Based Learning, kemampuan komunikasi matematis, self-efficacy The Effect of Brain-Based Learning Approach toward the Mathematical Communication Ability and Self-Efficacy of Senior High School Students AbstractThis study aimed to describe the effect of the instruction using Brain-Based Learning Approach (BBLA) toward students’ mathematical communication ability (MCA) and self-efficacy. This study adopted a pretest-posttest nonrandomized control group design in a quasi-experimental setting. The population comprised all students grade XI IPA of SMA Negeri 1 Jetis D. I. Yogyakarta in the second semester of the academic year 2012/2013 consisting of three classes. Two classes were selected as the research sample, namely experimental class and control class. The instruments of the study were a test of MCA and scale of self-efficacy. The data were analized using the one sample t test and MANOVA test. The findings of the study show that the instruction using BBLA has an effect on students’ mathematical communication ability and self-efficacy.Keywords: Brain-Based Learning Approach (BBLA), mathematical communication ability, self-efficacy

Statistical literacy, which is the ability to use statistics in daily life, is an essential skill for facing society 5.0. This study aims to explore first-year university students’ ability to properly use simple descriptive statistics and data visualization. Qualitative data were collected using a set of questions from 39 undergraduate students. Many students were able to calculate various descriptive statistics, but some of them were still unable to determine suitable statistics to describe the data clearly. Related to data visualization, many students failed to provide a meaningful chart that effectively shows the difference between two groups of data. Students with higher statistical literacy tend to use comparison or variability reasoning to determine the usage of descriptive statistics, and use data-based reason in visualizing the data. Improvement in statistical teaching – both in the university and the secondary school – is needed so that the students can use descriptive statistics and data visualization correctly.

Penelitian ini bertujuan untuk menjelaskan pengaruh Mathematics self-efficacy (MSE) terhadap hasil UN Matematika siswa tahun 2015. Penelitian ini merupakan penelitian ex-postfacto dengan desain kausal komparatif yang melibatkan 1 grup eksperimen dan 1 grup kontrol. Total sampel adalah 110 siswa, yaitu 55 siswa jurusan IPA dan 55 siswa jurusan IPS. Instrumen yang digunakan dalam penelitian ini adalah skala MSE. Data penelitian dianalisis menggunakan regresi sederhana dan Analysis of Covariance (ANCOVA). Hasil penelitian ini menunjukkan besarnya pengaruh MSE terhadap hasil UN Matematika adalah sebesar untuk jurusan IPA. Sedangkan untuk jurusan IPS, besarnya pengaruh MSE terhadap hasil UN Matematika adalah sebesar. Hasil pengujian lebih lanjut, ANCOVA, menunjukkan terdapat perbedaan hasil UN Matematika siswa antar kategori MSE dengan melakukan kontrol terhadap hasil TO UN Matematika. Dengan kata lain, dapat disimpulkan bahwa Mathematics self-efficacy (MSE) berpengaruh terhadap hasil UN Matematika siswa tahun 2015.