Chorus education, which is being practiced within the framework of music education’s branch of voice training, has significant impacts on an individual’s philosophy of life, self-confidence level and socialization. An individual assesses his own life satisfaction level cognitively in terms of many aspects. Chorus education can be seen as the most prominent and contributing aspect as it helps people feel satisfied and happy and moreover, it makes their life more meaningful in various ways. The study aims to interpret the effect of choral participations of middle school students on their life satisfaction. Accordingly, in this research, ‘satisfaction with life scale’ developed by Diener, Emmons, Laresen and Griffin  - later translated in Turkish by Koker - has been used. To that end, middle school students’ satisfaction with life has been investigated through comparisons done within the context of factors such as; gender, age, grade, previous musical instrument experiences as well as choral participation. As a result of the research, it has been identified that the life satisfaction does not vary significantly according to gender, age, grade or previous musical instrument experiences; yet it has been found that that there is a positive effect of choral participation on students’ life with satisfaction.

Problem-solving and mathematical communication are essential skills needed by students in learning mathematics. However, empirical evidence reports that students’ skills are less satisfying. Thus, this study aims to improve students’ problem-solving and mathematical communication skills using a Metacognitive-Based Contextual Learning (MBCL) model. A quasi-experimental non-equivalent control group design was used in this study. The participants were 204 fifth-grade students; consisting of experimental (n = 102) and control (n = 102) groups selected using convenience sampling. This study was conducted in four Indonesian elementary schools in the first semester of the academic year 2019/2020. The Problem-Solving Skills Test (PSST) and Mathematical Communication Skills Test (MCST) were used as pre- and post-tests. In order to analyze the data, one-way ANOVA was used at the 0.05 significance level. The results showed that students in the experimental group had higher post-test scores than the control group in terms of problem-solving and mathematical communication skills. It can be concluded that the MBCL effectively promotes fifth-grade students’ problem-solving and mathematical communication skills. Therefore, it is suggested that MBCL should be used more frequently in primary school mathematics to further improve students’ problem-solving and mathematical communication skills.

Teaching and learning new songs in class is an integral cultural practice. This paper focuses on a singing lesson and studies the complex relations among the target song, children’s song acquisition and the teacher’s instructions. However, instead of simply examining pitch accuracy or ratings, this paper proposes a novel methodology for analysing song learning in class. First, a transcription method is used to document a video-recorded lesson. Second, syllables are identified as both the essential components of the grammar of songs for children and the fundamental units for analysing singing in terms of pitch, timing and articulation. The individual singing of three children, divided into the syllables of the target song, is examined for these three properties. Third, a comparison between the song model and the children’s singing reveals how rule-breaking in the song corresponds to the children’s difficulties in singing. This detailed and subject-related analysis exemplifies the complex dynamic among the teacher, the object and the learner and is a contribution to the research of subject-related didactics.