Teachers? I'm not sure I understand your question.
Evolution should be taught in schools because it is a well-established scientific theory supported by a vast amount of evidence. Understanding evolution is essential for students to grasp the principles of biology and to critically evaluate scientific knowledge. Teaching evolution does not imply denying or negating any individual's beliefs or religious views.
They did not want students to learn the theory of evolution in school.
John Scopes was a school teacher in Tennessee that illegally taught the theory of evolution in a public school. He was arrested, tried and convicted.
Charles DArwin
The Theory of Evolution by Natural Selection, as an explanation for the development of life on earth and its current form and diversity, is taught in many school science courses, but not in all.
In 1925, John Scopes was charged with violating Tennessee's Butler Act, which stated that no subject taught in school could directly contradict the story of the Creation as found in the Bible.
Creationism is not taught in Ohio public schools as part of the science curriculum. It may be taught in a cultural or sociological classroom setting, depending on the teacher or school. Only evolution is taught as a scientific theory for the origin of life in biology/science classes.
Contrary to the letter of the Tennessee law, a high school biology teacher taught his class Darwin's Theory of Evolution and was arrested for doing so.
Because evolution is a proven, testable, scientific theory.
Evolution is a widely accepted scientific theory supported by extensive evidence, and should be taught in science classes. Creationism, however, is based on religious beliefs and is not supported by scientific evidence, so it is not appropriate to be taught in a science classroom. It may be more suitable for discussion in courses on religion or philosophy.
Rick Santorum does not believe evolution is a proven fact, and that it should not be taught as such in public schools. In addition, he believes other theories of how the universe came into existence should be taught alongside evolution. He proposed language to the No Child Left Behind Act to that effect.
All rational people. It is not a matter of belief, though, as what manifests itself in the real world, and evolution does that, is not subject to " beliefs " and is true whether you believe it or not. Evolution, the change in allele frequency over time in a population of organisms, is a fact. The theory of evolution by natural selection explains much of this fact. Evolution and the theory of evolution by natural selection is the foundation of biology and it makes little sense not to teach it. The courts have spoken, both at the local and Federal level, so evolution is taught in schools. How rigorously it is taught varies by region. Regardless, science does not adhere to argumentum ad populum.