That coin example is not a proper representative either. There is no possibility for interference. I recommend you explain superposition by making the analogy t

That coin example is not a proper representative either. There is no possibility for interference. I recommend you explain superposition by making the analogy that in coins, the probabilities are real numbers but in quantum mechanics they are complex amplitudes. The way you should explain this is like https://www.scottaaronson.com/qclec/2.pdf https://www.scottaaronson.com/qclec/2.pdf. Don't avoid math. You can't explain superposition and entanglement correctly without it. I didn't need to read those sections to figure out that they were incorrect. I just looked for some notation like vectors, matrices e.t.c.. and I didn't see any.