Abstract:
with 2 expert and developed class materials for teaching and learning. Quantitative data were collected from pre-test and post-test scores of 33 learners enrolled in the academic year 2022. The findings revealed an opportunity to develop an open data application to be used in teaching and learning. The comparison of learning achievement by paired-sample t-test showed that the mean score after learning was higher than the mean score before learning at a statistically significant level of 0.01. The comparison results revealed that the average score after learning was higher than the average score before learning at the statistical significance level of 0.05 in the 21st century skills of 1) data accessing, filtering and preparation 2) creativity and presentations, and 3) problem solving. On the other hand, there was no difference in analytical thinking skills. The results showed that learners were satisfied with the open data application used in teaching and learning at a high level (x̄ = 4.21). The results of this study will be useful to apply in data analysis course, which will develop 21st century skills of the learners.
