Logic Tail is a spatial reasoning and logic puzzle game where students use numbered “tails” to completely fill a board. Each number tells how many spaces its tail must cover, and the tail can only start by moving in the direction it comes out of the box. Students drag and extend each tail carefully, making sure it covers exactly the correct number of spaces without overlapping or leaving gaps. This game supports K–5 math by strengthening counting, number sense, and one-to-one correspondence, while also building spatial awareness, directional thinking, and logical problem-solving. As students plan how to use multiple tails to fill the board, they practice visualizing paths, estimating length, and checking constraints, which are key foundations for geometry and early algebraic reasoning.