North Dakota Math Corps members work with small groups of students in grades K-3 or 4-8 who are just below grade-level proficiency in math. Members provide 90 minutes of weekly tutoring outside of core instruction times. Math Corps tutors provide evidence-based interventions following lesson sequences developed for each grade level. Students take a placement test before beginning tutoring and the tutor uses results from the test to determine where in the lesson sequence to begin tutoring.

Tutors administer the Mathway assessment – a program developed measure of student whole and rational number understanding and algebraic reasoning – to identify eligible students and track student progress during intervention. Tutors also administer a multi-skill math fluency assessment that includes basic addition, subtraction, multiplication, and division math facts.