On Cloud Nine presents a unique program of math instruction that uses manipulatives, mental imagery, and specific language to help students develop the underlying math concepts necessary for reasoning and problem solving with numbers. On Cloud Niner is outlined here in its sequential steps: beginning with the most basic concepts of counting, adding, and subtracting, the program progresses to word problems, multiplication, division, fractions, and decimals. On Cloud Niner instruction can be used for first-time learners or as an effective intervention program for students who have long struggled with math skills. This manual provides sample lessons, instructional theory, and useful techniques for implementing On Cloud Nine in one-on-one or group settings. On Cloud Nine is one of the program manuals used in the professional development training and instructional services provided by Lindamood-Bell Learning Processes.