National Standardized School Exam (USBN) is used to determine Student’s graduation. This research aims to determine the characteristics of items for Math USBN in SMP on grade 9. This kind of research is a descriptive-explorative quantitative research. The data collected is a USBN test instrument at SMP Negeri 3 Pati and participants' answers, which are collected by documentation. The USBN instrument was validated by experts and the characteristic items of USBN instrument were analyzed using the classical test theory approach. The question items of math USBN test at SMP Negeri 3 Pati is generally moderately good. Based on the classical theory approach, the result of the validity is 0.924. 56.7% of items are very valid. The reliability is 0.78 categorized as high reliability. Generally, Math USBN items are in the easy category with a percentage of 83.3%. The results of discrimination index indicate that in general, USBN items are in a moderate category with a percentage of 60%. The distraction effectiveness shows that USBN items are in the functional category with a percentage of 50%.

This research aims (1) to examine the completeness of classical learning classroom with learning model Team Assisted Individualization based Assessment for Learning, and (2) to examine the comparison of the ability of student’s mathematical reasoning with learning model Assisted Individualization based on Assessment for Learning and direct learning model. This research uses a quasi experimental design method with posttest-control-group design. The population in this study was the regular students of grade VIII SMP Negeri 3 Pati in academic year 2016/2017. By cluster random sampling technique, VIII D and VIII E were selected as a sample. The data collection techniques used observation, tests, and documentation. Quantitative data analysis uses z-test and t-test. The result of the research shows that (1) student’s mathematical reasoning ability with learning model Team Assessed Individualization based on Assessment for Learning model achieves classical completeness, and (2) the student’s mathematical reasoning ability with the Assessed Individualization based on Assessment for Learning is better than the direct learning model.

Penelitian ini bertujuan untuk mendeskripsikan keefektifan pendekatan STEM berbantuan Wolfram Alpha ditinjau dari motivasi dan kemandirian belajar. Penelitian ini merupakan penelitian eksperimen semu dengan populasi seluruh siswa kelas VIII di salah satu SMP Negeri di Pati, Jawa Tengah, Indonesia. Sampel penelitian ini adalah siswa di satu kelas VIII yang dibagi menjadi 2, yaitu kelas eksperimen (kelompok siswa bernomor absen ganjil) dan kelas kontrol (kelompok siswa bernomor absen genap) dengan banyaknya siswa berturut-turut 16 dan 15 siswa. Data dikumpulkan menggunakan angket motivasi dan kemandirian belajar. Analisis data menggunakan uji t untuk mendeskripsikan keefektifan pendekatan STEM berbantuan Wolfram Alpha ditinjau dari masing-masing variabel. Hasil penelitian menunjukkan bahwa (1) pendekatan STEM berbantuan Wolfram Alpha efektif ditinjau dari motivasi, dan (2) pendekatan STEM berbantuan Wolfram Alpha efektif ditinjau dari kemandirian belajar. Hasil analisis keefektifan pendekatan STEM berbantuan Wolfram Alpha ditinjau dari motivasi ditunjukkan dari nilai t variabel motivasi adalah 4,258 dan nilai signifikan motivasi setelah perlakuan adalah 0,001 kurang dari 0,05. Keefektifan pendekatan STEM berbantuan Wolfram Alpha ditinjau dari kemandirian belajar dibuktikan dari nilai t variabel kemandirian adalah 5,030 dan nilai signifikannya 0,000 kurang dari 0,05.AbstractThis study aims to reveal the effectiveness of Wolfram Alpha-assisted STEM approach in terms of motivation and self-regulated learning. This study was quasi-experimental research. The population were all grade VIII students of a State Junior High School in Pati, Central Java, Indonesia. The sample were students of a class in grade VIII, which is divided into two groups, namely the experimental group (odd-numbered students) and the control group (even-numbered students) with 16 and 15 participating students respectively. The data were collected using questionnaires on motivation and self-regulated learning. The data were analyzed using the t-test to describe the effectiveness of Wolfram Alpha-assisted STEM approach. The result shows that: (1) the Wolfram Alpha-assisted STEM approach is effective in improving motivation; and (2) the Wolfram Alpha-assisted STEM approach is effective in improving self-regulated learning. The results of the analysis of the Wolfram Alpha-assisted STEM approach is effective in terms of motivation with a score of 4.258 and with the significance value of motivation after treatment being 0.001, which is less than 0.05. The Wolfram Alpha-assisted STEM approach is effective in terms of self-regulated learning with a score of 5.030 and with the significance value of 0.000, which is less than 0.05.