The problem lies not with the school children but with some adults who believe in a literal translation of a myth who want to censor material in public school science books (or teach theological ideas in public school science classes) because it conflicts with that belief.
I know teaching both sides of the Origins debate will never do for committed secular and atheistic Evolutionists. As long as they can have it, the only biology, sociology, etc. that is allowed is fully and only materialistic speculation. Those who believe in Creation and the immaterial faculties of the mind and free will would be in serious jeopardy if they tried to offer those ideas in the government classroom or lecture hall.
There is absolutely nothing wrong with teaching both sides.
You are right..the problem lies not with the school children but with some adults, who wittingly or unwittingly, believe and teach and masquerade the Darwinian and Cosmic Evolution hypothesis and speculation as established fact.
Unwary school students believe everything they read or hear in the classroom as substantially true. And when Darwinian and Cosmic Evolution are presented as dogmatic fact of science, school students become victims of a dangerous hoax.
Biology textbooks by Miller/Levine claim that we are descendents of ape-like "ancestors" who, as part of nature developed step by step from more primitive animals and lower forms of life. Darwinianism is presented as established fact of science which claims that over millions of years, plants, animals, and mankind evolved from a common ancestor and diversified into new species.
If left only to Darwinian Evolution, students come to believe they came from a brute animal. Drawings like the one above have been used over and over as evidence to sell Darwinianism to students. All of them, the bat's wings, the horse "evolution", peppered moths, Haeckel's drawings, are blatant misrepresentations drawn not from evidence but from pure evolutionary faith.
Natural systems degenerate from order to disorder called entrophy. Darwinian Evolution requires faith in the opposite. Darwinian Evolution has been pumped into man's conscience since the mid 1800's. One idea after another has been presented, yet, they have all FAILED TO PROVIDE SUBSTANCE.
The students need to be taught logical explanations of evolution from observable data that explains the big difference between "microevolution" (proven true science, evolution within a species) and unproven "macroevolution", evolution as a process of change from one species to another species. They should be told about the scientific evidence and very reliable findings that have overturned most Daarwinian claims. Darwin predicted that if his evolution theory were true, we should find intermediate fossils all over the earth. (eg. a fossil showing intermediate stages between an amphibian and a reptile.) Students need to be told that to date, modern science hasn't found one specimen.
Students need to be told that life cannot come from non-life. Man may resemble chimpanzees and our DNA code may be similiar but so what? Modern science has proven beyond a shadow of doubt that the genetic barrier prevents change beyond the species.
Instead of teaching science at its worst, we should be teaching science at its best.
In "The Death of Evolution", Wallace Johnson writes,
"Today, when the theory of evolution can be shown to be not credible, we hold the paradox of a new surge of evolutionary propaganda flooding the world through the mass media and our educational systems. It must be terribly important to some people to persuade men taht they are only animals and that science needs no God. If you are wondering why, the following will help to explain. Newman Watts, a London journalist, wrote a book entitled, "Britain without God". In his research for that book, he discovered something. He discovered that those who would shoot Christianity to pieces are using bullets of evolution. This is his warning, clear and decisive:
"Every attack on the Christian Faith made today has, as its basis, the doctrine of evolution."