The geometric aspect to learning isn't just an EL thing; it's lifelong. Which is one reason why what you do NOW in the early years can pay off massively in the end (even if all you did was just EL and then mail it in for the rest of your kid's childhood). Just keep inputting and keep your own learning and growing as a mutual experience and I sincerely believe you'll be richly rewarded with the depth and breadth of your life