PAPEDA TIMIKA
Learning to Make Flat Trapezoidal Figures from
Mica Plastic as a 3D Video Hologram Projector in the Classroom 5
With: Dedi Saeful Anwar
Muhamamdiyah Creative Islamic Elementary School, Cianjur
When facing Mathematics lessons, usually students have refused first. There needs to be interesting and fun learning activities. One of them is in the Mathematics lesson about Measuring Plane Figures, among them: build a flat triangle, parallelogram, trapezoid, and rhombus.
However, to achieve the expected level of competency teachers need to implement effective learning strategies. So it needs to be adjusted to the classroom ecosystem. Apart from that, preparation and an interesting learning approach are needed, pleasant to create student-friendly learning. The effort made is to create a Differentiated Teaching Module with a Social Emotional Competency approach (KSE), and application of group methods.
Apart from that, another effort is to draw flat shapes using several writing tools, like: pencil, eraser, ruler, sized square paper 1 cm x 1 cm, colored folded paper (origami paper), scissors, paper glue, mica plastic, solation, notebooks, and resource books and devices.
After preparing the teaching module and some equipment that must be prepared, then implement learning using group dynamics. A number 22 students are divided into 4 group through a game. This is not only to make it easier to guide and supervise, but also to foster a competitive spirit.
Before making three-dimensional hologram media using mica plastic from flat trapezoid shapes, All students learn about calculating the area of flat shapes. Start by making a flat trapezoidal shape on a sized square of paper 1 cm x 1 cm, according to the question given. Then, All students cut out the results of their work and stick them in their Mathematics assignment book. They create individually in groups. After everything is finished making and pasting, then calculate the area. Next, they look for answers and the teacher checks the results of the work and the calculations.
The next activity is to make a flat trapezoid shape on the width of origami paper in colors according to the student's preferences. The size of the trapezoid has been determined. Bottom side 8 cm, top side 4 cm high 6 cm. This aims to test the accuracy of the centimeter unit when using a length measuring instrument using a ruler.
The next step is to attach the origami paper to the mica plastic that each student has prepared, then cut to the appropriate size on the origami paper which is shaped like a trapezoid. Each group makes 4 trapezoidal shape sheet with mica plastic material.
After each group has 4 a sheet of flat shapes made from mica plastic, then each side is connected using clear plastic insulation so that it becomes a 3D video hologram projector media for the application youtube via each group's device.
With learning to make flat shapes using mica plastic as a medium for a 3D video hologram projector, there are several changes that are in line with the teacher's expectations.. In between, the creation of interesting learning, pleasant and on the side of students. Students are able to make the most of their time, students are able to use devices (cell phone) and communication technology more usefully.
Then students become more active in learning Mathematics regarding calculating the area of flat shapes, Students are able to communicate with their fellow students well, the growth of a more positive spirit of competition because they want to complete tasks well and optimally.
Cianjur, 13 August 2023