Tujuan penelitian ini untuk menggambarkan jenis dan faktor kesalahan anak didik dilihat menurut teori Newman menggunakan soal kritis matematis dalam topik bangun ruang sisi datar. Pendekatan yang digunakan penelitian ini kualitatif menggunakan metode deskriptif. Subjek penelitian yang dipilih bertempat di SMP Negeri 2 Kopo yg ada di Kabupaten Serang pada kelas VIII, menggunakan jumlah 20 orang ditetapkan menggunakan output analisis tes soal esai akal budi kritis dan dipilih 5 orang untuk di wawancarai. Pengumpulan data menggunakan tes soal esai kemampuan berpikir kritis, wawancara, dan dokumetasi. Data output tes & tanya jawab akan dianalisis dari teknik analisis data yaitu: reduksi data, penyajian data dan penarikan kesimpulan. Hasil penelitian ini menunjukkan: (1) dalam termin kesalahan membaca soal sebanyak 46%, (2) kesalahan memahami soal sebesar 62%, (3) kesalahan transformasi soal sebesar 57%, (4) kesalahan keterampilan proses sebesar 67%, & (5) kesalahan menulis jawaban akhir sebanyak 77%. Faktor penyebab adalah peserta didik tidak teliti dalam membaca soal, tidak tahu materi, tidak menguasai materi & lainnya
Based on the results of observations, that the level of absenteeism is still low, employee absences continue to increase every year, especially for the criteria for absences, sick, late and going home. This shows that the leadership is less than optimal in supervising its employees, it is found that there are still many employees who do not come to work due to permits, illness and are late for work and even go home early. Based on the Government Regulation of the Republic of Indonesia Number 53 of 2010 concerning Discipline of Civil Servants Article 3 Point 11 which states that entering work and obeying the provisions of working hours. As a result, employees do not complete the work and often make mistakes over and over again. The purpose of this study in general is to analyze and describe the significant direct or indirect positive influence of leadership style, supervision and organizational culture on employee performance through motivation as an intervening variable. The research method used is to use path analysis (Part Analysis) to determine the direct or indirect effect of the variables studied. It is then used to analyze the extent to which the work motivation variable is able to mediate an increase in the quality of management information systems to improve employee performance and to what extent the work motivation variable is able to mediate the effect of leadership style on improving the performance of the Serang Regency Education and Culture Office Employees. The results obtained after the research was carried out were: 1) Based on the calculation results of SPSS v.25 Beta value due to the direct influence of leadership style on performance β = 0.000 the indirect effect of motivational mediating factors on the influence of leadership style on the performance of the employees of the Education and Culture Office of Serang Regency obtained value of β = 0.215. The comparison of the value of direct effect is smaller than the value of indirect effect which causes work motivation to be able to mediate the influence of leadership style on employee performance. 2). Based on the calculation results of SPSS v.25 Beta value due to the direct influence of supervision on performance β = 0.155. the indirect effect of the mediating motivational factor on the influence of supervision on the performance of the employees of the Department of Education and Culture of Serang Regency obtained the value of β = -0.046. Comparison of the value of direct effect is greater than the value of indirect effect which causes motivation to be unable to mediate the effect of supervision on employee performance. 3). Based on the calculation results of SPSS v.25 Beta value due to the direct influence of organizational culture on performance β = 0.000. the indirect effect of the mediating motivational factor on the influence of organizational culture on the performance of the employees of the Department of Education and Culture of Serang Regency obtained the value of β = 0.243. Comparison of values direct effect is smaller than value indirect effect that causes motivation to be able to mediate the influence of organizational culture on employee performance.
Berdasarkan hasil angket dan pengamatan peserta didik kelas VIII D terdapat peningkatan keaktifan peserta didik dalam pembelajaran online dengan media Google Classroom. Penelitian Tindakan Kelas ( PTK ) ini dilakukan mulai dari observasi Pra siklus ke siklus I dan Siklus II yang bertujuan untuk mengetahui meningkatnya keaktifan peserta didik dalam kegiatan pembelajaran dengan media Google Classroom. Sesudah dilaksanakan penelitian, dapat disimpulkan bahwa rata-rata peningkatan keaktifan peserta didik dalam pembelajaran pada Pra siklus sebesar 41,87%, pada fase Siklus I sebesar 49,37% dan pada fase siklus II sebesar 65,62%. Pada fase siklus II indicator kerja penelitian sudah terlampaui, maka penelitian ini dihentikan hanya sampai pada fase Siklus II. Sehingga bisa diambil kesimpulan dari penelitian ini bahwa pembelajaran daring dengan menggunakan media Google Classrom dapat meningkatkan keaktifan belajar peserta didik. Hasil penelitian ini diharapkan bisa mendorong para pendidik untuk ikut melakukan penelitian ini dan memotivasi pendidik lain untuk melakukan penelitian tindakan dengan tema dan media pembelajaran daring yang lainnya sebagai upaya meningkatkan profesionalisme sebagai seorang pendidik.
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