OIS uses a Biblically Based Education curriculum. The Accelerated Christian Education Curriculum (ACE) has been in existence for more than 40 years and is internationally recognized. It is a unique teaching system with an individualized learning methodology; which is Progress motivated individualized Programmed Learning, that meets each child’s educational needs at their level of performance/potential. This allows students to learn at their own Pace which ensures mastery of the subject material. With the learner-centered approach, many learner differences can be taken into account, learners can work at their own pace at the time most convenient to them; different learning styles can be accommodated; learners are more in control of how and what they learn and learning is active and not passive.