Instructions for solving story problems using the units mentioned in the question as a guide for filtering out the irrelevant portions and rearranging the relevant portions to give you the answer.
This was written for Chinese high school students. They don't get a lot of story problems. The math is about 5th or 6th grade level. The problem solving is maybe a bit more advanced. I think the sweet spot for this would be about 7th or 8th grade.
This is intended as a working aid or study guide kind of thing. It could be adapted into a lesson.