Portfolio and planning

I have been reading a book called " Learning to read and write in the multicultural Family" by Xiao-Lei Wang and I am consideri g some of the ideas explained on the book
Creating a Portfolio of Clara's language evolution looks like an interesting idea. I could keep her first drawing and sketches of first writings.So she could see how she is actually progressing. she could also as the author of the books suggests , choose which items should be included in her portfolio. Recordings of her oral and reading skills could also be a good idea for her to be involved in her learning process.
The second idea suggested in the book is to design a clear and revisable planning of what we want our kids to learn.It should include aim, activities, and assessment.I have to say that I haven't before thought about assessment(obviously not grading in a formal way, but checking in everyday life situations if she has in fact learnt what we had planned to)...so this is something I will consider