Grace Lutheran School Students on the Iowa Tests of Basic Skills (ITBS) consistently score in the top 15% of schools and students across the United States.

Every class at Grace Lutheran School exceeds the proficiency standards for performance in the areas of Reading, Math and Language as measured by the Idaho Standards Achievement Test (ISAT). All GLS classes average at the Highly Proficient or Advanced level for student performance in the area of Reading and demonstrate highly proficient or advanced in the areas of Language and Mathematics as compared to the Idaho approved ISAT proficiency scores. This information will be used by classroom teachers to target curriculum goals for instruction for next school year.