Many books have suggested chess related math projects for teachers to use, but this workbook is the world firstly created for students under grade 1 to combine chess directly into math computation worksheets. This workbook teaches basic computations in addition and subtraction, mostly, for one-digit operations. It also includes mathematical puzzles and mathematical chess puzzles. Some puzzles combine arithmetic, chess, and Sudoku all in one. This special puzzle is called Frankho ChessDoku. A world's first invention maze called Frankho ChessMaze is also included in this workbook. To understand a bit more about Ho Math Chess teaching philosophy and its worksheet, watch the following video: https: //www.youtube.com/watch?v=Td3SKp7cukA Please email Frank Ho at fho1928@gmail.com for any problems, suggestions, or concerns. I started to get involved in chess teaching at the time when my son was about 6 years old. He showed interest in a set of chess placed on the table in the living room. He was excited about finding out that by making a right move he was rewarded with taking his opponent's piece. Later we studied chess together and he became a Canadian junior chess champion and a FIDE chess master. My interest shifted from playing chess itself to studying the relation between chess and mathematics. Eventually, I created this Ho Math, Chess, and Puzzles for Grade 1 and Under workbook. There are many pure math puzzles or chess puzzles only workbooks on the market. How this Ho Math, Chess, and Puzzles for Grade 1 and Under workbook sets itself apart from others is that it contains one-of-a-kind mathematical chess puzzles in which math concepts and chess knowledge are integrated using my invention of SCL (Symbolic Chess Language) to link math and chess and this discovery is the world's first. SCL is based on the chess set which I created using a geometry concept of line segments and lines. This workbook is a revolutionary breakthrough in teaching math using game-based teaching method. Many problems require children to look for problems using spatial relations and patterns, also find their answers by computing in multi-step. As a result, this math and chess integrated workbook takes the boredom and repetitions away from computing practice. Ho Math Chess teaching method can improve children's math scores and problem-solving ability; develop children's logic and critical thinking skills. It is a natural health food for improving brainpower. Most of the teaching organizations use a very classic teaching method that is to teach basic numeracy or counting skills, they do not know how to systematically integrate a chess game into math worksheets. Ho Math Chess is the only one and the world's first to have integrated chess and puzzles into math calculation worksheets to make math learning fun. This workbook uses chess pieces, chess points and chessboard etc. to instill mathematical concepts related to the pattern, logic, geometry transformation, number theory and many, many other math concepts. This workbook is created with the ideas of learning math in multi-concept, multi-sensory, multi-direction and hands-on approach. It is an innovative product of supplementing elementary mathematics. The purposes of this workbook are to develop and train the skills of the following areas. - Building basic facts skills. Our invention of proprietary SCL (Symbolic Chess Language) provides many multi-step problems to train computation skills. - Transferring abstract idea to concrete numeric values SCL provides training to the understanding of how symbols are converted to meaningful numerical values. - Developing reasoning and logic skills - Processing image and data analysis -Training visualization and spatial reasoning - Developing hand-eye-brain coordination with hands-on experience