|A 2008 clip of Richard Dawkins, from his Channel-4 documentary "The Genius of Darwin" (Ѻ), part one "God Strikes Back" (Ѻ), interviewing (2:20-3:50) four London high school biology teachers about why they don’t address the religious conflict when they teach evolution.|
Dawkins | Biology teacher interview
In 2008, English biologist Richard Dawkins, in his channel-4 documentary “God Strikes Back”, interviews four biology teachers, at Park High School (Ѻ), North London, video segment shown adjacent (2:20-3:50) about tensioned difficulties of teaching evolution to kids:
“I worry that high school biology teachers are tiptoeing too respectfully around traditional beliefs.”— Richard Dawkins (2008), Park High School teacher interview
“We can’t get into the business of knocking down kid’s religions and the religions of families.”— Chris Scott (2008), head of science at Park High School queried by Dawkins about why the conflict isn't addressed
“Because we teach science, and I would not feel comfortable talking about anything but science.”— Rachel Hughes (2008), Park High School biology teacher interviewed by Dawkins about why the conflict isn't addressed
The teaching of evolution, in short, inherently puts kids religious beliefs into question; hence the teachers avoid this tenuous issue, because, as they repeatedly say, in interview with Dawkins, “it is not their place”.
High school biology | Evolution
The following infographic shows the results of a 2007 poll of 939 US high school biology teachers, which shows that 58 percent of teachers spend between 1 to 5 hours covering the evolution of humans and some 17 percent do not cover the topic at all: 
High school biology teachers | Beliefs
The following infographic shows the personal beliefs reported by polled high school biology teachers of the 2007 survey, showing that 47 percent believe in god-guided evolution, 16 percent believe in some type of Biblical creationism version of human origins, according to which humans were created by the power of god within the last 10,000 years, whereas only 28 percent believe in godless evolution theory: 
Creationism writer Jerry Bergman, in his The Dark Side of Charles Darwin (2011), citing Edward Humes’ The Monkey Girl (2007), and the ongoing parents vs school board law suits about creationism teaching vs evolution teaching, gives his opinion that evolution is a teaching that is hardly neutral, but rather one that “openly teaches a religion, the religion of atheism and ultimate nihilism.” 
The following are related quotes:
“I teach evolution not as a unit, but by introducing the concept here and there throughout the year. I put out my little bits and pieces wherever I can. While some students have college educated parents, other students come from families that may not accept the idea, and that holds me back.”— Ron Bier (2005), “Interview on teaching evolution at Oberlin High School, Ohio” 
“American science teachers, fearing religious backlash, have become timid about teaching evolution theory to their students.”— Lauri Lebo (2008), The Devil in Dover 
1. (a) Creationism vs Darwinism in Education (poster) – CampusExplorer.com.
(b) Creationism vs Darwinism in Education (poster) – Pinterest.com.
2. (a) Humes, Edward. (2007). Monkey Girl: Evolution, Education, Religion, and the Battle for America’s Soul. Harper.
(b) Bergman, Jerry. (2011). The Dark Side of Charles Darwin (pg. 83). New Leaf Publishing.
3. Dean, Cornelia. (2005). “Evolution Takes a Back Seat in U.S. Classes” (Ѻ), New York Time, Feb 1.
4. (a) Dean, Cornelia. (2005). “Evolution Takes a Back Seat in U.S. Classes” (Ѻ), New York Time, Feb 1.
(b) Lebo, Lauri. (2008). The Devil in Dover: an Insider’s Story of Dogma v. Darwin in Small-Town America (pg. 18). The New Press, 2013.
● Chapman, Matthew. (2007). 40 Days and 40 Nights: Darwin, Intelligent Design, God, Oxycotin, and Other Oddities on Trial in Pennsylvania. Harper Collins.