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The Drake Equation | Posted in Earth and Space Science
The Drake equation is not directly used by scientists in their research. Rather it is often used when talking about life in the universe to non-scientists, such as in astrobiology courses, as James mentioned. One of the keynote addresses I sometimes deliver is on astrobiology, and I discuss the Drake equation quite a lot, as it relates to many fascinating topics regarding the development of life in the universe, where we would expect to find life, and how common we might expect life to be.
The purpose of the Drake equation is not to give a precise answer to that fundamental question -- How many technological civilizations are in our galaxy? -- but to form the basis of discussions by presenting various types of information that we would need to know, if we wanted to answer that question.
So basically the Drake equation is a statement that "stimulates intellectual curiosity about the universe around us, for helping us to understand that life as we know it is the end product of a natural, cosmic evolution, and for helping us realize how much we are a part of that universe." (https://www.seti.org/drakeequation)
What the equation and the search for life has done is focus science on some of the issues concerning life in the universe, specifically the development of life starting with chemical processes, the development of multi-cellular life, and the development of intelligence.
The Rock Cycle | Posted in Earth and Space Science
It would be helpful to know what the students already know about rock formation and earth science in general.
If they have a basic understanding of rock formation then a hands-on activity identifying rock samples in a general way would reinforce their beginning understanding of the characteristics of sedimentary, metamorphic, or igneous rocks. The processes that form rock are more easily understood when looking at actual rocks.
Animals in the classroom? | Posted in Life Science
In preparation to have my own classroom, considering the pros and cons of having a class pet is important. While I agree with past posts that having a pet is a great way to help students take ownership of their classroom, practice responsibility by caring for the animal, and inspire curiosity and research, I also appreciate everyone's advice on precautions and even possible downfalls of taking animals out of their natural environment. Ideally, it would be fantastic for kids to take lots of field trips to partake in learning experiences in the 'real world'. Logistically and financially this is not an efficient option most of the time. So its important to bring a variety of real artifacts and specimen into the classroom to enrich learning experiences. The ethics concern in respect to having animals caged in your class is something important to consider. I think should be a topic of discussion among students before getting a class pet. If students decide having a pet is unethical, I really like the bird feeder option. Bird watching can be done almost anywhere. Catching bugs and then returning them to their natural habitat may also be a good compromise to having a pet. I think its important to demonstrate critical thinking for students and will continue weighing the pros and cons of having animals in the classroom.
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