@Octavius.
These are some quotations from Grindon Halls creation policy - A policy still in force,as far as I am aware.
"We will teach evolution as an established scientific principle, as far as it goes.
We will teach creation as a scientific theory and we will always affirm very clearly our position as Christians, i.e. that Christians believe that God’s creation of the world is not just a theory but a fact with eternal consequences for our planet and for every person who has ever lived on it.
We will affirm that to believe in God’s creation of the world is an entirely respectable position scientifically and rationally."
"However, we vigorously challenge the unscientific certainty often claimed by scientists surrounding the so-called “Big Bang” and origins generally.
We believe that no scientific theory provides – or ever will provide – a satisfactory explanation of origins, i.e. why the world appeared, and how nothing became something in the first place."
"We will affirm the fact that “God created the world and everything in it”. We will affirm that he did so “ex nihilo” – out of nothing.
We believe that God, as sovereign Lord of the universe, is capable of creating the world in a few 24-hour days, or over a period of millions of years"
Regardless of what they give lip service to - these are their core beliefs. These are the beliefs they will be communicating to children, overtly or covertly, in scientific lessons.
Holding such beliefs is incompatible with an education offering critical thinking, rational analysis and a firm scientific grounding. You may be relaxed about it - I am not.