Improving science learning competence through advance organizer model innovation based on authentic and real worlds activities for elementary school student

The implementation of science learning in elementary schools is generally still carried out conventionally, which is still teacher-centered and rarely makes students active. Students are rarely involved with authentic activities so that learning is less meaningful. The research question is whether there is an effect of the advance organizer model based on authentic and real world activities on the science learning outcomes of elementary school students This study uses a quantitative method in the form of a Quasy Experiment. The Subject is 20 students in grade IV of elementary school student. The research was conducted by testing one class with a pretest and posttest design. The results showed that there was a significant difference between learning outcomes before using the advance organizer model with multimedia assistance and after using the model. This is because the application of advance organizers with multimedia provides real experiences to students, one of which is by conducting direct experiments. Learning with advance organizers with real world activities can provide meaningful learning experiences for students.


Introduction
The learning model is a pattern of learning implementation that can be chosen by the teacher according to the conditions of the students and the learning content that will be given.The right learning model will make the learning process more interactive and can increase students' learning motivation.Providing learning experiences to students needs to be designed effectively so as to achieve the expected learning objectives.[1] [2].To improve student learning outcomes, teachers need to create a conducive learning atmosphere that makes students able to increase their motivation in learning and can overcome the problems they face in learning.The learning process that takes place in elementary schools in Padang City, especially in science subjects is not optimal, because it still uses simple media and does not support the achievement of learning objectives.[3] [4].In connection with the use of information technology in learning materials can be packaged in such a way by using learning models and learning media, so as to create varied and effective learning situations.Some science subject matter in elementary school contains material that is difficult for students to understand without learning media tools.The use of learning media is very important because it can lead to student motivation in participating in learning.Science material is learning material that requires more understanding and is very complex in nature, so to understand it properly, learning media is needed that is able to actualize messages to students.Therefore, the solution is to use a learning model that involves students in the learning process, can make students motivated to follow the learning process properly and optimally.One of the appropriate learning models is the Advance Organizer learning model.Advance organizer is a learning model that emphasizes the cognitive structure of students by involving these students in the learning process, so that students are expected to be able to manage, clarify, pay attention and maintain knowledge in the learning process optimally [5] [6].So that in overcoming the problems above can be done using the Advance Organizer learning model.The advance organizer model is recall related information so that it helps instill new knowledge [11][12] [7].An initial setting can be considered a kind of mental aid and is presented before new material Advance organizer based on authentic learning and real world activities can be described as introductory material that is presented first in a learning task and has a higher level than the learning task itself.The use of advanced organizer models combined with learning multimedia based on authentic and real activities can be used in science subjects so as to improve learning outcomes and student learning activities [13] [14].

Advance Organizer Model Based on Authentic and Real Worlds Activities
Advance organizer model aims to provide a meaningful learning experience to strengthen the cognitive structure of students.What is done is to strengthen and link the cognitive structure of students where the learning process is carried out by providing cognitive road maps that link new information to relevant concepts so that students can remember and apply the knowledge they already have.This model is done by optimizing the absorption of information through the cognitive structure of students.[15][16] The important thing in this learning is to apply relevant learning concepts, concept maps, and tie learning to what students have learned.This is so that students can have new knowledge that is constructed independently so that it becomes the knowledge of the students themselves.Advance organizer can be integrated with authentic and real activities using learning media.In principle, learning media will guide students through learning videos and instructions that are relevant and can be implemented.Learning videos are designed by presenting simple experiments that students can do at home and in their respective environments.

Learning Science
Science learning at the elementary school level focuses on increasing the ability of students to investigate problems in the surrounding environment and integrate them with their activities.Students use various tools in making measurements and observations and paying attention to relevant details of the objects being observed [17].Independently, students can ask further questions to clarify observations and make predictions about scientific investigations.Students use various tools in making measurements and observations and paying attention to relevant details of the objects being observed [18].Independently, students can ask further questions to clarify observations and make predictions about scientific investigations.

Method
This type of research is a quasi-experimental with a purposively selected sample, namely SDN 16 Timbalun, Padang City.Experimental research involved 20 elementary school students.The research subjects were given treatment with pre-test and post-test designs.In the early stages, students were given conventional learning and pre-tested.Furthermore, they are given treatment using an advance organizer model using authentic based multimedia and real world activities.The procedures of this model are 1) the orientation stage with the teacher's explanation, 2) the elaboration stage by watching videos and carrying out authentic activities with multimedia guidance.In this stage students work with worksheets 3) the communication stage, namely students communicate the results of activities in front of the class and other students respond.After being given the treatment, a posttest was carried out.Data were analyzed using the t test This study was to determine the effect of the application of the Advance Organizer model based on authentic and real activities with the aid of multimedia on student learning outcomes in elementary school student.Student learning outcomes are measured by giving an objective test with 40 questions.Data on student learning outcomes using the Assisted Advance Organizer model based on authentic and real activities.Based on the pretest conducted, the highest score achieved by students was 92.5 while the lowest score obtained was 62.5.Next, a posttest was carried out.Based on the tests carried out, the highest score achieved by students was 90 while the lowest score obtained was 60.To see a comparison of the value of classroom learning outcomes that apply the Multimedia-assisted Advance Organizer model based on authentic and real world activities compared to learning with conventional (control) learning models, it can be seen in the following table this:

Result
integrated with authentic and real activities designed through learning multimedia [7] [8].Students can carry out real learning activities that are guided by learning multimedia.In this concept students can do real activities at home according to the applied learning design.In this study, the advance organizer model was applied by using multimedia in learning based on authentic and real world activities [2][9][10] [7].The Advance organizer model based on authentic and real world activities directs students to the material to be studied and makes it easier to The table above shows that there are significant differences in learning outcomes between the use of the advance organizer model based on authenctic and real activities and the conventional model.So that the research hypothesis can be accepted, namely that there is an effect of using the advance organizer model on increasing science learning outcomes for elementety school student.
The authentic and real world activities-based advance organizer learning model is a learning design that seeks to activate the cognitive structure of students with various learning activities.This model is an innovation in learning that changes the pattern of learning from being teacher center to student center.Advance organizer is a model that seeks to organize material and learning experiences of students in order to gain meaningful knowledge.[19].As explained in the research background, the learning process has not been implemented optimally.Teachers still do not use IT-based media so that it affects student motivation and learning outcomes The advance organizer learning model is a learning model that prioritizes the cognitive structure of students, which Ausubel gives meaning to someone's knowledge of a particular field of science, at a certain time, and the extent to which the organization is, its clarity and stability.The advanced organizer model based on authentic and real world activities provides a real and meaningful learning experience for students.Students carry out concrete activities with multimedia guides that have been designed.This activity involves group work so students can discuss with each other so as to find solutions to relevant problems.In their activities students will find, manage, classify problems and solutions with relevant theories.The teacher acts as a facilitator in learning whose function is to align learning concepts with illustrations or pictures and analogies that are appropriate to the characteristics of students.The use of this advance organizer model is supported by the use of IT-based media.Media in Educational Technology is a unity that cannot be separated, if we talk about learning media, we also talk about Educational Technology.In Educational Technology discusses learning technology.In essence,

Discussion
learning technology is a discipline concerned with solving learning problems based on a set of principles and using various approaches.Learning problems exist anywhere, to anyone, anytime and about anything [20][21] [22].Based on the results of the study, information was obtained that the use of an authentic activity-based advance organizer model could have a significant influence on improving student learning outcomes.In this study advanced organizer is integrated with multimedia using the Prezi application.This application is interesting and provides lots of animations and images that make students motivated in learning.
The experimental stages made with Prezi multimedia help students to clarify learning content, making it easier for students to discuss the worksheets to be made.Students discuss with each other according to their respective understandings and the teacher will function as a facilitator to explain if there are differences in concepts between students.The use of the advanced organizer model is very effective in enhancing the learning experience of students.

Conclusion
Conclution of this reaserach that: 1) The results show that the average value of student learning outcomes who study using the Advance Organizer model based on authentic and real world activities with multimedia assistance is higher than the average value.the average learning outcomes of students who learn by applying conventional learning models.
2) The application of the Advance Organizer model based on authentic and real world activities with the help of multimedia is significantly different from the conventional learning model.Based on the conclusions of the research that the authors obtained, it is suggested that teachers can use this learning model and use a number of IT-based media to optimize student learning outcomes, especially in science subjects.

Table 1 .
Statistic TableThis normality test was conducted to determine whether the sample was normally distributed or not.In this study, the normality test for both samples used the Lilliefors test as stated in the data analysis technique.After the normality test and homogeneity test, then proceed with the t-test to find out whether there is a significant effect for the values of the two groups.If tcount < ttable, it means that there is no significant difference between the two groups.This is in accordance with that "If the value of tcount is equal to or greater than the value of ttable, it means that there is a difference and if tcount is smaller than t table, it means that there is no significant difference".