Project-Based Mathematics Learning: Fruit Salad Recipes in Junior High School

Abstract

Mathematics learning is associated with 21st-century skills such as communication, collaboration, critical thinking in problem-solving, creativity, and innovation. To help students obtain these skills, a learning project was developed through Pendidikan Matematika Realistik Indonesia (PMRI) approach by using fruit salad recipes and collaborative learning based on the Lesson Study for Learning Community (LSLC) system. The primary purpose of this study was to develop fruit salad recipes to assist junior high school students in solving problems using mean, social arithmetic, and data presentation. It employed design research type validation studies using photos, fruit salad products, and document reviews as data collection techniques. The research subjects were 27 students of grade 8 from a junior high school in Palembang. This study resulted in a learning trajectory consisting of two activities and post-test questions. In the first activity, the students can analyze and solve problems in planning fruit salad recipes with material averaging, social arithmetic, and data presentation. In the second activity, the students can make fruit salads and write recipes based on skills to make fruit salad products. The results of this study demonstrate that in project-based learning through PMRI with the context of fruit salad recipes and the LSLC system, students can learn collaboratively. The learning helps them solve problems by using average material, social arithmetic, and data presentation in developing fruit salad recipes.

Local instructional theory of probability topics based on realistic mathematics education for eight-grade students

“…The similarity of this study with the previous is that both use the RME approach and develop/support students' mathematical communication skills. The result showed that this approach could improve their skills and help the student develop ideas in finding concepts independently and in groups (Freudenthal, 1968;Haryani et al, 2015;Rahayu et al, 2021;Thompson & Findlay, 2002). Another difference is that its products are in the form of lesson plans and worksheets, and the topic developed is the material for building flat sides.…”

Lecturer professionalism: Local problems with the help of teaching aids to make students understand Prim’s, Cruscal’s, and Djiksra’s algorithms

“…This research is a validation study with three parts: preliminary design, experimental design, and retrospective analysis (Hadi, 2021;Rahayu & Putri, 2021). The validation study process can be seen in Table 1.…”

Promising research studies between mathematics literacy and financial literacy through project-based learning

“…Eickholt et al (2019) stated that PjBL is a precise and realistic method for student-centered learning. In mathematics classes, PjBL emphasizes the application of mathematics in an interdisciplinary, holistic approach, integrated with practice and complex problems in the real world, where students must be able to carry out investigations to understand and productoriented (Kokotsaki et al, 2016;Rahayu & Putri, 2021). The projects in PjBL are related to student's culture and daily life problems (Markham, 2011;Jalinus et al, 2017;Eickholt et al, 2019;Oguz-Unver & Arabacioglu, 2014), which financial context is an activity that students experience daily.…”