Essential Questions: (1) What is an ecosystem? (2) What is a natural resource?
Description: An ecosystem is the living things and the non-living things connecting with each other. The one example is algae. Algae take the sunlight for food and fish eat algae and then people eat fish. This is one connection. In Ecosystems class we had a journey book to take notes or write keywords that we don’t know what that word means. In Ecology class the first topic that we learned was tropical forest. We did not just learn only tropical forests but we also learned a lot of kinds of forests like conifers and others. A tropical forest is the forest that has rain a lot all year. We also learned about ecological relationships. Ecological relationships mean that one organism and another organism connect with each other. Ecological relationships are divided in five parts. They are parasitism, commensalism, predator-prey, mutualism, and competition. Our Ecology group went to Mondulkiri province to study there. We spent six days at Mondolkiri. We met a lot of people like Bunong people. O
n Saturday we came back to our school and we shared what we learned.
(2) What information should I know about architecture?
(3) What does Khmer architecture look like?
(4) What are the differences between ancient and modern architecture?
(5) How do we create architecture?
Architecture is the process of planning, designing and constructing. When we work on architecture with these three things we have to think about durability, utility and beauty. So in our Exploration we learned about architecture in Cambodia. For example: in Cambodia there are many houses, buildings and also the temples. The Khmer architecture was different than the other countries because like the Angkor Wat is made from the big rocks and the foundation that they built is layers of rocks and sand. But in the other countries, like in the U.S.A, there are not really the buildings that have the foundation like that. Before, the buildings in Cambodia were not that big. The houses were also not that big and were not made from cement like right now. Now when they make the houses, they put many colors and many styles that they want. But at the past, the Khmer buildings were not too big and did not have many styles like now. Just the temples had many styles that Khmer ancestors made by hand with the big rocks. On the big rocks they made the big sculptures that showed about Khmer history. To do the architecture we have to follow the theory of architecture and do it step by step. In this group we went on the trip to Siem Reap to learn how did the Khmer ancestorsbuild the temples. Other than that we also went to some places in Phnom Penh. We went to Central Market, Olympic Stadium and PPIT. That is the school that teaches about the architecture.
Exploration Name: Renewable Energy in Cambodia (Poo)
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.
3. How can simple machines be used to create engaging interactive toys and why is toy creation a powerful form of learning?
Description: 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.