I write content and conduct workshops for an education firm and also in schools where I try to make them realise how beautifully mathematics and rational thinking complement each other (on elementary level at least). For instance I team them up and design setups where they solve problems like
How many pluses we should put between the digits of $987,654,321$ to get a total of $99$ and where?
How to place numbers from $1$ to $9$ such along sides of a triangle such that sum of numbers along each side of triangle is $20$
Students enjoy these problems and teachers appreciate this idea. But I cannot convince parents about how solving such problems can be useful for students in their academics because at the end all that matters for them is their child perform good in their academics.
My question is how can I convince parents who do not know much mathematics and logic but are conscious about their child's academic that such mathematical puzzles will enhance academic performance of their children and is not a waste of time.
I hope I made myself clear. Also, I do not know suitable tag for this question so if you know some please add them to question.