The Corporate Social Responsibility (CSR) in the company recently is not only based on the single bottom line which depends only on the financial condition, but also on the triple bottom line which also depends on the financial condition, environment and society. This study aims to get empirical evidence about the influence of public ownership and Return on Assets (ROA) on the disclosure of Corporate Social Responsibility. The object of the research is a service company listed on the Indonesia Stock Exchange in 2014-2015. Collection methods used in this research is the data sourced in an annual report published by the Indonesia Stock Exchange. The collection of samples used is purposive sampling technique. Total sample of this research are 9 service companies listed in Indonesia Stock Exchange in 2014-2015. Simultaneously, public ownership and ROAgave significant effect to CSR disclosure. Partially, public ownershipgave adversely affect to the direction of CSR disclosure. ROA effect with positive direction towards CSR.

This paper aims to describe students’ thinking interference when studying function material. The study was conducted by analyzing the work results of 6 students of Mathematics Education Study Program FMIPA State University of Malang in the 6th semester about the function material. The results of the study show that students think interference when they understand the functions with verbally, symbolically, and diagrams.

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The results showed the ability of the representation of various students in the cognitive domain increased. Judging from the increase of the test at the end of the cycle shows that the percentage of students who have the ability to change the representation of symbol form to graphic form or vice versa well with the initial percentage of 12.5 percent to 82,06 percent. In cycle I obtained 43,75 percent of students who have been able to meet various representation indicators while in the second cycle obtained 82,06 percent. Hasil penelitian menunjukkan kemampuan representasi beragam siswa kelas VIII.3 meningkat. Ditinjau dari peningkatan yakni tes di akhir siklus menunjukkan bahwa presentase siswa yang mempunyai kemampuan mengubah representasi bentuk simbol ke bentuk gambar dan sebaliknya dengan baik dengan presentase awal sebesar 12,5 persen menjadi 82,06 persen. Pada siklus I diperoleh 43,75 persen siswa yang telah mampu memenuhi indikator representasi beragam sedangkan pada siklus II diperoleh 82,06 persen.