Science textbooks only present scientific facts that cause the textbooks to seem not to promote scientific reasoning. Science learning also becomes not in line with the nature of Science. Then, Science learning requires applying authentic Science as an approach. Adapted Primary Literature (APL) is assumed to be able to achieve this objective.…

This study investigated the impact of the problem-solving model on students' concept mastery and motivation in learning heat based on gender. The method which was used in this research was quasi-experiment with pretest-posttest design in girls and boys class. Data are collected from girl class (N=16) and boys class (N=16) of a 7th grade in one of…