The aim of this paper is to comprehensively describe the process of developing algebraic thinking in students and to outline effective methods and activities that contribute to this development in mathematics education. In the introductory part, the concept of algebraic thinking is analyzed through its various aspects, with a focus on fundamental elements necessary for the proper acquisition of algebraic expressions. Special emphasis is placed on activities directed towards the development of key concepts such as equality and variables. The paper includes activities aimed at introducing algebraic expressions, utilizing models such as money and surface area. There is a description of activities that involve the use of algebraic tiles as tools for visualization and active student participation in the process of discovering the basics of computing with algebraic expressions. Algebraic tiles are employed to provide students with a visual experience and enhance their understanding of the fundamentals of computing with algebraic expressions. Activities designed to explore basic algebraic identities are intended to encourage students to discover fundamental algebraic identities using surface and volume models, facilitating the development of their ability to connect geometric and algebraic concepts. Through the described activities, the paper contributes to understanding the development of algebraic thinking in students and outlines approaches that promote deeper comprehension and adoption of key algebraic concepts.