ABSTRACT. Evaluation and assessment is an important part of learning. In evaluation process of learning, written test is still commonly used. However, the tests usually do not following-up by further evaluation. The process only up to grading stage not to evaluate the process and errors which done by students. Whereas if the student has a pattern error and process error, actions taken can be more focused on the fault and why is that happen. NEA procedure provides a way for educators to evaluate student progress more comprehensively. In this study, students' mistakes in working on some word problem about linear programming have been analyzed. As a result, mistakes are often made students exist in the modeling phase (transformation) and process skills (process skill) with the overall percentage distribution respectively 20% and 15%. According to the observations, these errors occur most commonly due to lack of precision of students in modeling and in hastiness calculation. Error analysis with students on this matter, it is expected educators can determine or use the right way to solve it in the next lesson.

Hasil pengamatan kemampuan kerjasama anak usia 3 – 4 tahun di KB KASIH IBU belum optimal. Era pandemic yang melibatkan libur sekolah maka meningkatkan kemampuan kerjasama anak melalui cuci tangan bergantian diadakan di rumah masing – masing  dengan pendampingan orang tua. Penelitian ini bertujuan untuk mengetahui proses meningkatkan kemampuan kerjasama melalui cuci tangan bergantian di KB KASIH IBU Gringsing Batang. Manfaat dari penelitian adalah hasil dari penelitian dapat dijadikan  sebagai acuan keberhasilan pembelajaran kemampuan kerjasama melalui cuci tangan bergantian. Jenis penelitian ini adalah penelitian tindakan kelas  terdiri dari 2 siklus antara lain siklus I dan siklus II. Siklus I peningkatan kerjasama anak mencapai 45,34 (2 anak) kemudian meningkat menjadi 83,34 (5 anak) pada siklus ke II. Berdasarkan data tersebut dapat disimpulkan bahwa kegiatan cuci tangan bergantian dapat meningkatkan kemampuan kerjasama anak usia 3-4 tahun di KB KASIH IBU Gringsing Batang.