Marks' first lessons in geometry / In two parts. Objectively presented, and designed for the use of primary classes in grammar schools, academies, etc.

This elementary geometry manual presents a structured course for primary and grammar school pupils, dividing instruction into a development section that introduces points, lines, angles, polygons, triangles, quadrilaterals, circles, and surface measurement using diagrams and guided exercises, and a second section that states axioms and illustrated theorems. Lessons include teacher notes for large classes or instructors with limited formal training, use repetition and review to reinforce concepts, and pose suggestive questions intended to strengthen reasoning alongside perceptive skills so students can continue geometric study independently.