A series of books and written articles in the field of mathematics and problem solving; Educational publications, namely, books, hand-outs, workbooks, study guides, and educational instruction guides in the fields of mathematics and problem solving; Printed instructional, educational, and teaching materials in the field of mathematics and problem solving

Education services, namely, providing classes, seminars, and workshops in the field of mathematics and problem solving, and distribution of course materials in connection therewith in printed or electronic format; Educational services, namely, providing a continuing prerecorded audio and video program in the field of mathematics and problem solving accessible over the internet; Educational services, namely, developing, arranging, and conducting educational programs and providing courses of instruction for test preparation in the field of mathematics and problem solving, and distribution of course materials in connection therewith in printed or electronic format; Education services in the nature of elementary school instruction; Providing online publications in the nature of books, handouts, workbooks, videos, study guides, and educational instruction guides in the field of mathematics and problem solving; Providing online non-downloadable e-books in the field of mathematics and problem solving