How teachers use technology efficiently in their classes is an important issue because learning environments are also affected by rapid developments in instructional technology. In the current study, we investigated how designing an inquiry-based technology-enhanced lesson plan on the virtual platform influences the TPACK (Technological Pedagogical Content Knowledge) self-efficacy of pre-service teachers and also how they integrated educational technology into their lesson plans. A total of 38 undergraduate students at a teacher education programme participated in the study. Data were gathered by the self-efficacy scale and the lesson plans developed by the pre-service teachers. The findings revealed a significant increase in the TPACK self-efficacy of the pre-service teachers after they designed an inquiry-based technology-enhanced lesson plan on the virtual platform. Besides, lesson plan analysis showed that pre-service teachers generally followed the phases of inquiry-based learning and integrated online scaffolding tools and virtual laboratories into their plans at a moderate level.

The science learning environment is an important factor in students’ attitudes toward their science experiences in school, as well as toward science courses. This study compares how learning in different laboratory environments (hands-on or virtual) influences these attitudes for middle school (7th grade) students. Participants were 143 seventh-grade students from a public school. They were enrolled in four different seventh-grade science classes, all taught by a single teacher. Pretest and post-test responses were compared to investigate participants’ attitudes toward different forms of laboratories and toward science courses. Data were gathered by giving students an attitude questionnaire (pretest and post-test) and by conducting interviews (post-test). Findings revealed that laboratory experiences have a strong impact on middle school students’ attitudes toward science; after working with the laboratory environment (either hands-on, virtual, or in a combination) students had a more positive attitude toward science. Data based on the questionnaire revealed no differences in attitudinal improvement between hands-on, virtual, or combinations of these labs, although descriptive data suggested that virtual labs are more effective for attitude change than hands-on labs. This may be linked to students’ overall, but slight, preference for virtual laboratories over hands-on laboratories, as became apparent from the interviews.

Inquiry-based learning can be an effective approach when students are provided with sufficient guidance. However, there is an ongoing debate among practitioners about the nature, type, and level of such guidance. This study investigated the effects on middle school students’ (N = 116) conceptual knowledge and inquiry skills acquisition of providing two different levels of guidance (support or direct presentation of information related to the inquiry process) in hands-on and virtual science laboratories on the topic of electricity. The study was based on a 2 × 2 between-subjects factorial quasi-experimental design. The effects of two different levels of guidance combined with either a hands-on or a virtual laboratory were examined. Findings revealed that although the level of guidance was important for students’ conceptual knowledge development, it had no significant impact on their acquisition of inquiry skills. In terms of laboratory environments, it appears that a virtual laboratory and a hands-on laboratory are equally effective for the development of middle school students’ conceptual knowledge and inquiry skills.

Textbooks are one of the primary teaching tools frequently used in schools and most teachers use them in their classrooms (Sanchez and Valcarcel, 1999). Since there are a lot of abstract concepts in science education, images in science textbooks play a vital role in the learning process (Kenan et al., 2011). Concretization of abstract concepts may ease students' understanding. For this reason, the aim of this study was to examine images about the particulate nature of matter (PNM) in Turkish middle school science textbooks. In other words, visuals were examined with respect to representational levels, relatedness to text, existence and properties of the captions. The rubric developed by Gkitzia et al. (2011) was used to evaluate the images from middle school science textbooks in selected units. A total of 825 images in Turkish middle school science textbooks were identified in related units. In addition, it was found that the most common representation type of images about the PNM in Turkish middle school science textbooks were macroscopic representations (36%). The relatedness of images to the text was also studied. It was concluded that just 4 out of 10 images were completely related and linked to the text. Lastly, it was found that more than half of the images about the PNM in Turkish middle school science textbooks had no caption.

Simulations, which is a type of educational technology has started to be used widely in classes. Contradictive results show that there is no certain conclusion about the effects of them on students’ domain knowledge, inquiry skills and attitudes towards science. The goal of the study is to compare the impacts of simulation-based and textbook-based instructions on the middle school students’ science achievement, inquiry skills and attitudes towards science. The study was done with 188 middle school students and three science teachers. Whereas 98 of them enrolled in the classes where simulation-based instruction was used, 90 of the participants were from the classes in which textbook-based instruction followed. A quasi-experimental research design was used in the study. The data was gathered by the achievement test, the inquiry skills, and the attitude scale. The findings revealed that simulation-based instruction is significantly efficient in enhancing middle school students’ science achievement and inquiry skills. Yet, it was also reached that both of the instructions have no significant impact on students’ attitudes towards science. Possible reasons behind the results were also discussed.