Instruct: Classify Amazon reviews into positive or negative sentiment
Query: not user-friendly

I have had a rather hard time finding suitable materials for my 8-12 years old Sunday school class. I tried this book, but have felt rather disappointed. Each lesson was not very well-constructed, hard to follow and spot the point. The content was also rigid. It tells you what exactly to say rather than guide you to create a fun environment. I don't think the book can provide lessons that speak effectively to the active young generation with short attention span.