Discussing it properly is fine as long as they are interested. If they don’t seem interested, then you can boil it down to a simpler analogy. Some kids very much appreciate having the full picture right away, and some need a framework first before details can be added. Most schools use method 2, because it will eventually reach all kids, and the only downside is kids that need/want method 1 will be bored the whole time.
Discussing it properly is fine as long as they are interested. If they don’t seem interested, then you can boil it down to a simpler analogy. Some kids very much appreciate having the full picture right away, and some need a framework first before details can be added. Most schools use method 2, because it will eventually reach all kids, and the only downside is kids that need/want method 1 will be bored the whole time.