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 Mondolkiri province to study there. We spent six days at Mondolkiri. We met a lot of people like Bunong people. On Saturday we came back to our school and we shared what we learned.
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.