I'm not trying to be insulting, Linwood. I'm just trying to be realistic. 5 year olds really are in the preoperational stage. They can walk and talk and make sandwiches, they do appear to reason and understand, but if you actually test their cognitive abilities you'd be amazed at how undeveloped their formal reasoning, cognition, insight, &c are.
Most 5 year olds have not yet mastered seriation, classification, conservation, transitivity, reversibility or decentering. They're not able to abstract or comprehend hypotheticals like adults.
This isn't my opinion. It's Cognitive Development 101. Just Google.
Understood Seyorni but I think you`re speaking above and beyond the parameters of the OP.
A 5 year old child is unlikely to come home from his Christian friends house after a play date and ask you what you think of the effects certain presuppositions about the Q document have on theories of gospel doctrine.
The five year old is going to ask you how three different people can be one person at the same time they`re still three different people (Trinity).
He`s going to ask you if anyone has ever walked on water and how is it done.
He`s going to want to know if mom has a recipe for fish that can feed a multitude.
Children rarely attempt to learn beyond what they`re capable of thinking about.
Problems only arise when adults bring silly confusing concepts into their worlds before they are ready for them.
However, to say children aren`t capable of critical thinking involving concepts they do understand is just wrong.
Let the child lead your teaching and he/she can have some personal understanding at a very young age.