Development of General Chemistry Learning Media (Thermochemistry) Using Web Based Learning Model

The use of innovative and constructive learning media in reconstructing students' knowledge, abilities and creativity is something that a lecturer needs to consider. One of the media that can be applied in the learning process is learning media using web based learning. This research and development aims to describe the feasibility (validity), effectiveness and improvement of student learning outcomes through learning media using a web based learning model that was developed in general chemistry learning of thermochemical material through the ADDIE development model. This research and development resulted in books and learning media for General Chemistry on thermochemical material using a web based learning model that has been declared valid (appropriate) and has been proven to be effective in improving student learning outcomes. Validity is met qualitatively based on the assessment of the validators of material experts and media experts. Effectiveness is met based on the results of implementation and proven by statistical hypothesis testing (p < 0.05) with the average value of the pretest-posttest difference or an increase in student learning outcomes of 25,633±7,739.