MEDIA PEMBELAJARAN MATEMATIKA | Materi jarak, kecepatan, waktu

Summary

This educational video, created by a group of students from the Department of Primary School Teacher Education at Jambi University, focuses on teaching the concept of unit scales and simple calculations in geometry and measurement. The video explains the use of a learning media involving unit scales and basic formulas related to distance, speed, and time. Through examples, the video demonstrates how to apply formulas to calculate distance, speed, and time, offering practical insights for students to better understand these concepts. The video aims to enhance student comprehension of these mathematical principles.

Takeaways

• 😀 The presenters are from the Primary School Teacher Education Program at the Faculty of Teacher Training and Education, Universitas Jambi.
• 😀 The presentation focuses on explaining how to use a learning media tool designed to teach about musical scales and unit measurements.
• 😀 The media used includes cardboard and origami paper, which depict a scale of length and a simple notes diagram.
• 😀 One of the goals of using this learning media is to help students better understand unit measurements and musical scales.
• 😀 The lesson includes a basic formula pyramid to explain the relationship between distance (J), speed (K), and time (W).
• 😀 The formula for calculating distance is J = K * W (speed multiplied by time).
• 😀 If speed is the unknown, the formula becomes K = J / W (distance divided by time).
• 😀 If time is the unknown, the formula becomes W = J / K (distance divided by speed).
• 😀 The first example problem involves calculating the distance traveled by a car based on its speed and travel time. The result is 180 km.
• 😀 The second example problem demonstrates how to calculate travel time, resulting in 1 hour and 30 minutes for the journey from Jakarta to Bogor at an average speed of 40 km/h.
• 😀 The presenters conclude the video by apologizing for any errors and expressing hope that the video will be useful to viewers.

Q & A

What is the purpose of the educational media discussed in the video?

The purpose of the educational media is to help students better understand the concept of musical scales and unit measurements, specifically focusing on unit length scales and simple notes.

What materials are used to create the learning media?

The learning media is made using cardboard, origami paper, and includes a unit length scale and simple notes.

What is the formula explained in the video?

The formula discussed is JKW (Distance = Speed × Time), where J represents distance, K represents speed, and W represents time.

How is the formula JKW used when the distance is unknown?

When the distance is unknown, the formula is rearranged to J = K × W, meaning distance equals speed multiplied by time.

How is the formula used when the speed is unknown?

When the speed is unknown, the formula becomes K = J ÷ W, meaning speed equals distance divided by time.

What happens when time is the unknown variable in the formula?

When time is the unknown variable, the formula is rearranged to W = J ÷ K, meaning time equals distance divided by speed.

What is the first example problem presented in the video?

The first example problem involves calculating the distance Kang Nong travels when driving a car at a speed of 60 km/h from Jakarta to Bandung. The total time of travel is 3 hours.

How is the distance calculated in the first example?

The distance is calculated using the formula J = K × W, where K is 60 km/h (speed) and W is 3 hours (time), resulting in a distance of 180 km.

What is the second example problem presented in the video?

The second example problem involves calculating the time it takes to travel from Jakarta to Bogor, with a distance of 60 km and a speed of 40 km/h.

How is the time calculated in the second example?

The time is calculated using the formula W = J ÷ K, where J is 60 km (distance) and K is 40 km/h (speed), resulting in a travel time of 1 hour and 30 minutes.