This program-based workbook series strengthens mathematical thinking and creativity. Building on foundational preschool skills such as pencil control, spatial reasoning, and number concepts, it systematically covers all five areas of the elementary math curriculum: numbers and operations, shapes, measurement, probability and statistics, and patterns and problem-solving. Book 1 (Weeks 1-4): Understanding hundreds and multiples of hundreds; understanding three-digit numbers; understanding skip counting; addition and subtraction with three numbers; understanding the difference between line segments and straight lines; various shapes such as circles, triangles, and squares; moving shapes in a given direction; creative thinking exercises; sample contest questions; achievement test. Book 2: Two-digit plus one-digit addition with carrying; two-digit minus one-digit subtraction with borrowing; mixed calculations with three numbers; comparing units of length; understanding the centimeter (cm) unit of length; estimating and measuring length; representing an unknown number with □; finding the value of □ in addition and subtraction equations; creating equations to find an unknown number; creating word problems from equations. Book 3: Reading the time; understanding the difference between time of day and duration; understanding the hours in a day; understanding a year using a calendar; understanding minutes before the hour and half-hour times; counting in groups; expressing addition as multiplication; representing quantities with both addition and multiplication equations. Compiled by: Gitan Education Research Institute Recent titles: Gitan Thinking Skills Math Level B Book 4, Gitan Thinking Skills Math Level B Book 3, Gitan Thinking Skills Math Level B Book 2, and 694 titles in total Featured title: Gitan Math Level F Book 5