What does it mean for ISTP to offer "dual language immersion"?

Both the French/English Program and the Chinese/English Program offer dual language immersion from Nursery to 5th grade, leading to a smooth transition to Middle School.

Research has shown that dual language learners who begin their dual language studies in nursery or preschool and continue them throughout the middle school years are far more likely to retain full fluency later on in their adult lives. In addition, the benefits of dual language immersion extend far beyond language capabilities. Dual language learners are more adaptable to life situations, are more capable of processing multiple approaches to a problem, and are more confident in their ability to handle risk and change.