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This study aims to determine the differences in problem-solving and critical thinking skills between students taught using the Reciprocal Teaching and Problem-Based Learning models in class X of SMK Ki Hajar Dewantara Kotapinang for the 2021-2022 academic year. This is a quantitative study using a quasi-experimental design. The population consists of all class X students at SMK Ki Hajar Dewantara Kotapinang in the 2021-2022 academic year, totaling 111 students. The sample used was class X AKUNTANSI 1 and X AKUNTANSI 2, each consisting of 20 students, chosen as experimental classes using Cluster Random Sampling. Data were collected from pre-tests and post-tests with problem-solving and critical thinking skill test items, then analyzed descriptively and followed by Two-Way ANOVA. The findings indicate: 1) There is no difference in problem-solving ability between students taught using the Reciprocal Teaching model and the Problem-Based Learning model in class X of SMK Ki Hajar Dewantara Kotapinang, with F_observed = 0.320 < F_table(α= 0.05) = 3.978; 2) There is a difference in critical thinking skills between students taught using the Reciprocal Teaching model and the Problem-Based Learning model in class X of SMK Ki Hajar Dewantara Kotapinang, with F_observed = 5.128 > F_table(α= 0.05) = 3.978; 3) There is a difference in both problem-solving and critical thinking skills between students taught using the Reciprocal Teaching model and the Problem-Based Learning model in class X of SMK Ki Hajar Dewantara Kotapinang, with F_observed = 0.026 > F_table(α= 0.05) = 3.936; 4) There is no interaction between the Reciprocal Teaching and Problem-Based Learning models in class X of SMK Ki Hajar Dewantara Kotapinang, with F_observed = 0.459 < F_table(α= 0.05) = 3.936.

Reciprocal style is a teaching style where students have the opportunity to give feedback to their peers or partners.  This allows students to improve their learning outcomes and increase social interaction with their peers. Table tennis games that are usually taught in schools have the aim that students can have knowledge and understanding of table tennis itself and can develop sportsmanship and actively participate in table tennis learning. The method in this research is experimental method. The population in this study were students of class X SMAN 1 Tondano which amounted to 172 students. The sample used in this study was 26 students of class X who were divided into two groups, namely the experimental group of 13 students and the control group of 13 students. The conclusion of this study is that the application of reciprocal style can have an influence on basic movements on forehand push shots in table tennis games on basic movements on forehand push shots in table tennis games for students of SMA Negeri 1 Tondano.  

The problem in this study is that students of class XI SMK Negeri 1 Tomohon do not get learning guidelines, namely task cards containing basic motion concepts on the kopstand in floor gymnastics. Students lack the opportunity to learn in the realm of knowledge and movement skills; namely the absence of interaction (feedback) as observers and performers of motion in the learning process of basic movements on the kopstand in floor gymnastics. The research method used in this research is the experimental method, the research design used is “Pre-test and post-test randomized control group design”. The population in this study were students of class XI SMK Negeri 1 Tomohon, totaling 194 students. The sample in this study amounted to 40 students. The instrument used was “basic movement ability test on kopstand in floor gymnastics”. The data obtained were tested with the t test with a confidence level of α = 0.05. The conclusions in this study are: tcount = 8.7049 > ttable = 2.0243. Based on the testing criteria, if the tcount is greater than the ttable (tcount> ttable), then H0 is rejected, which means HA is accepted so that “The application of the reciprocal teaching style has a significant effect on increasing mastery of basic movements on the kopstand in floor gymnastics in class XI students of SMK Negeri 1 Tomohon”.

The school environment requires each other to interact and communicate every day. The problem in research is that deaf students who have hearing impairments need knowledge to be able to coexist with society. Teachers really need the right communication approach so that students can understand what is being conveyed so that there will be a reciprocal relationship between the two. The purpose of this research is to determine teachers' communication approaches in social interactions with deaf students. This research explains how a communication approach is important in the social interactions of deaf students through interactions in classroom learning and also in the school environment. This research uses qualitative research methods using Burgoon's interaction adaptation theory which discusses nine principles in adaptation. This research uses data collection techniques in the form of observation, interviews and documentation techniques. The results of this research are that adaptation in the communication approach in social interaction of deaf students requires adapting interaction patterns, varying distance patterns and strategies as well as the importance of behavior in adaptation. Apart from that, in the communication approach the teacher determines communication media in the learning process in the classroom and provides direction to students to increase social interaction. Learning to develop sound and rhythm perception as well as speech development, these activities are efforts made by the school to increase social interaction for deaf students. Communication patterns in teaching at SLB B YPAC Palembang are two-way communication.