Hi,
First of all, I love the idea of teaching children Accounts. I learnt accounts when I was in grade 11 and realized that such basic money related education should have been provided right with Math in grade 4.
Let me introduce myself. I am a full-time freelancer in Finance, Economics, Accountancy and other related domains. I have a strong academic background, having cleared all 3 CFA levels and successfully acquiring an MBA in Finance and a Bachelor's in Commerce and Accountancy.
So what you need here is a basic way of teaching children bank reconciliation. I have a list of transactions that can make it simpler to explain. I can use the information you want to share and add what's missing to create a custom lecture for your children.
I would love teaching them, I have taught a lot of people online through Q&A, text book solutions and video conferencing, so thing is not something new to me.
So, give me a chance, and I will deliver great results.
Thanks