41 Educational services, namely, conducting informal programs in the field of mathematics for middle schools to support their students' preparation for science, technology, engineering, and mathematics (STEM) courses in high school; educational services, namely, conducting education programs in the field of algebra to encourage middle school educators to provide Algebra I courses in eighth grade; educational services, namely, providing workshops to school administrators, school leaders and teachers in the field of middle school mathematics programs; educational services, namely, providing training of teachers in the field of advanced mathematics content as it relates to programs in which high school students complete college-level studies while they are still in secondary school and receive college recognition therefor; educational services, namely, providing professional coaching of teachers in the field of mathematics teaching methods; educational services, namely, mentoring in the field of implementing an advanced mathematics curriculum; educational services, namely, providing mentoring services and programs to teachers in the field of implementing an advanced mathematics curriculum; educational services, namely, developing curriculum for teachers; educational services, namely, developing curriculum for teachers in the field of incorporating rigorous lessons into existing units; education services, namely, providing support in the nature of extracurricular review in the field of mathematics