Exploration Name: Robotics
Exploration Dates: Exploration 3: November 20 – January 17 and Exploration 4: January 20 – March 7
Number of Students: 6
Description: In our Exploration class we learned about natural disasters and how to make the robot with the lego bricks. The lego brick is really complicated to do the robot because it is small. The lego box has four sensors: ultrasonic sensor, color sensor, touch sensor and gyro sensor. The ultrasonic sensor is used for measuring the length. The color sensor is used for measuring the reflection of color. The touch sensor is used for touching something that tells about the place. It will send the information to the brain. We learned about how to program, build and about natural disasters. Each of these are very important and it gave lots of advantages because we needed to use all of the skills to do it. Building is the most important, which gives most advantages too because building is the first step to make the robot. Programming is the most difficult part because we need to write the code to make the robot work. When we started to learn our group needed to think about the ideas to make a robot that can do the challenge and complete the four goals of the challenge. They are Mechanical Design, Strategy & Innovation, Robot Performance and Programming. The natural disaster was divided into three parts: Presentation, Innovation Solution means how creative was the solution that we did and Research. The challenge was we needed to make the robot knock down the building, tsunami, take the track and the ambulance to the end zone.The students needed to work ìn a team with six people to have success in the FIRST® LEGO® League in Singapore. We had to look and watch lots of videos to get more ideas. We also looked at the rules of the game in order to learn more about the challenge. Then we went to Singapore to do the challenge.
Exploration Name: Renewable Energy in Cambodia
Exploration Dates: Oct 7 to Nov 19
Number of students: 13 students
1. Are biogas and solar energy sources practical and cost effective in Cambodia?
2. What are the benefits and drawbacks to using biogas and solar energy in Cambodia?
In our Exploration class we had three things to work on. The first area was the solar system. The solar system is a resource that can create the energy from the sun. Solar has four types: solar panel, solar cooker, solar water heater and solar lamp. A solar panel is the solar thing that creates the energy to run the electricity. A solar cooker is the solar thing that creates the energy for cooking. A solar water heater is the solar thing the creates the energy to turn the normal water to the hot water. A solar lamp is the solar thing that creates the energy to light the house if that house doesn’t have the electricity. The next thing that we learned about was the biodigester. A biodigester is a natural system that can create biogas by using poo from the animals. Cow poo is the best. It has a lot of benefits. Example: (1) saving the money, (2) healthier than using firewood, (3) save a tree. The last thing that we learned was about hydroelectricity. Hydroelectricity is a thing that creates the energy by using water. It usually is built over the river. The biggest dam in the world is in China. Our goal was to make Cambodians know that all of these things can create energy. Also we wanted them to use these three things because they are good and can save a lot of money. We also had a trip too. The trip was to go to Kampong Speu. Our target was to install two biodigesters. We install them in Camkids and the orphanage called HAP because we wanted to make them easy instead of using the firewood. Both of the biodigesters cost $1100. When we went to to Kampong Speu we also taught some students too. We also slept at Kampong Speu too. We had good days when we were in Kampong Speu.
Exploration Name: Simple Machines (Toys)
Exploration Dates: August 12 – September 26
Number of students: 13
1.What are simple machines?
2.What is mechanical advantage?
3.How can simple machines be used to create engaging interactive toys and why is toy creation a powerful form of learning?
In our Exploration class we learned about simple machines and how to make toys using cams (it is like a circle, like wheel and axle) + simple machines. Simple machines can make some jobs easier to do. We learned about wedges, levers, pulleys, inclined planes, gears, screws, wheels and axles. Each of these things have different advantages and disadvantages. Levers are the most used in real life. Levers can be anything you hold. Ex. sword handle, computer lid, all of those things are levers. When we started we learned about how to use simple machines in our toys. We watched a lot of videos to understand and to get new ideas. We first built toys for testing our project. It worked but it was too small and not good enough. We researched more and then we got more ideas from books, computers and videos. When we had enough knowledge and enough information, we got an idea and we worked in teams. We thought that to make our toy more interactive, we have to get some paint to make it colorful. When we finished the toy we planned a trip with our teacher to Takeo province. Our trip was not long just half a day travel and half a day at NFO to teach the students there about simple machines and how to make toys. We came back to set up for our presentation in the big area. All of Liger students came to see us and learn from each other.