Hi Isa,
My dd is in a two-way immersion program in the US. One thing that I have learned having my child in that program is that children learn the process of how to read once. After that they simply apply the process to a different language. If your daughter is stronger in Spanish, you may want to consider homeschooling her for a few months to focus on learning to read in Spanish. My dd could already read in English before beginning her education in Spanish. This made learning Spanish easier especially since Spanish is a more phonetically consistent language. Spanish is probably one of the easiest languages to learn to read in because of the consistency. I am not familiar with German or Dutch, but English is a difficult language in which to teach reading because there are so many exceptions to the rules and it includes so many words from other languages.
Summer
