This document outlines an innovative teaching manual for a lesson on adding negative numbers. It includes the learning objectives, which are for students to recall knowledge about numbers, describe properties of negative numbers, apply concepts to new problems, and develop skills in adding negative numbers. The lesson plan consists of pre-assessment activities using a number line, group activities subtracting balls of different colors to represent negative numbers, example problems, and a review activity. The goal is for students to understand how to add negative numbers.