Because it's SCIENCE class and all the evidence there is (comparative anatomy, genetics, paleontology, embryology, 29+ independent lines in all) points to evolution.
Still waiting for the reply...tap...tap...tap...
How exactly does one teach "You can't make me see"-ism, anyway? What does one learn by being immune to information?
Here, I will answer your question for you. And it is anything but being immune to information. This debate is all about information.
Kids, in this section of our curriculum we are going to look at the different ways that people think the world started and how man got to the point that he is today. Some will tell you that we evolved. We will go into detail on that. Others say we were created by a superior being, God. Using science as best we can, we will try to undertand how someone could have that perspective. And we will look at some other ideas on the origins of the Earth and life as well.
The purpose here is to present you with as much information, or lack of it as the case may be, for you to have as full an understanding of this question as possible. Keep in mind, though, that no matter the explanation for the origins of life and the Earth, when all is said and done, noone knows for sure and noone ever will. If someone tells you they are certain, that they have evidence, that is only their belief. You have to decide for yourself what you believe, if anything at all. And there will be no fooling yourself if you have a complete understanding of the issues and the debate. So, let's get started by first looking at Evolution.
Those that believe in evolution say it is grounded in solid sceience. They point to evidence they say confirms every species on Earth evolved from a single organism, spliting off into different species and then turing into all that you see around you today. For example, they look at similarities between apes and man and conclude that man came from ape. By contrast, those that believe a god created the Earth will tell you that it is just a matter of god having created an ape and having created a man.
Who is right. I am not going to answer that. Let's look at what the evolutionist say points to their belief that man came from an ape. We will get to the part about coming from a single organism later. Then we will look at what creationist say shows that evolution is wrong and they they say supports their belief that the world was created by a god.