If you think your kids can handle English pretty well and your kids like to learn new language, why not let her\him to take some challenge? Frankly, Grade 1 to 3 here is quite simple. 2. In my understanding, FI indeed affects the English study. If you take a look at the result of EQAO and compare how many students in level 4 between FI school and English school, you will know what I mean. However, the situation will improve when your kids reach the higher grade and have more opportunities to learn English. 3. The parents need to take more responsibities to motivate kids to read and write English. If you want your kids have good English while attending FI, the school will not help u too much, so you have to play more active role to help them. 4. There were lots of discussion about FI in this Forum, search it.