XS Pick Theorem

Xiangyang Shuijing Electronic Technology Co., Ltd

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About this app

Master area intuition with Pick theorem in a fun lattice puzzle game.

Lattice Area turns geometry practice into short, focused challenges. You will draw polygons on a grid, count boundary and interior points, and apply the classic formula A = i + b/2 - 1 in real gameplay scenarios.

What you can do:

Practice area calculation with guided lattice polygons
Train reverse construction by drawing shapes that match target areas
Spot theorem misuse cases, including self-intersections, holes, non-lattice vertices, and curved edges
Test speed and accuracy in timed challenge rounds
Review mistake history and improve from past errors
Designed for:

Middle school and high school students
Teachers and tutors
Anyone who wants to build stronger geometry intuition
Key features:

Multiple learning modes: Basic, Reverse Drawing, Pitfall Practice, Timed Challenge
Clear visual board with point-based assistance
Progress, streak, and star-based challenge feedback
Lightweight learning flow for daily practice