Geometry and Spatial Reasoning
📊 Overall Study Progress
📐 Geometry Fundamentals
Master the foundational building blocks of geometry including points, lines, planes, angles, and basic shapes
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Khan Academy: Basic Geometry and Measurement: Comprehensive introduction to geometry fundamentals with interactive exercises covering points, lines, angles, and basic shapes Khan Academy Basic Geometry📝 Notes
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Kevin's Guides: Fundamental Geometry Concepts: 2024 tutorial covering all the basics including segments, rays, planes, angles, postulates, and theorems Geometry Basics Guide📝 Notes
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Virtual Nerd: Fundamentals of Geometry: Video tutorials on fundamental geometry concepts with visual demonstrations and step-by-step explanations Virtual Nerd Geometry📝 Notes
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Online Math Learning: Basic Geometry Concepts: Comprehensive lessons with diagrams, examples, and step-by-step solutions for basic geometry Basic Geometry Concepts📝 Notes
🧠 Spatial Reasoning and Visualization
Develop spatial visualization skills through mental rotation, 3D thinking, and visual-spatial problem solving
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Magrid: Spatial Visualization Skills Development: Learn spatial visualization techniques critical for mathematics and problem-solving Magrid: Spatial Visualization Skills Development📝 Notes
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Matrix Education: Ultimate Guide to Spatial Reasoning: Comprehensive guide to developing spatial reasoning and thinking skills with practical exercises Matrix Education: Ultimate Guide to Spatial Reasoning📝 Notes
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Vaia: Spatial Reasoning Examples & Techniques: Engineering perspective on spatial reasoning with real-world applications and techniques Vaia: Spatial Reasoning Examples & Techniques📝 Notes
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Frontiers in Education: Spatial-Mathematics Relations: Research-based insights on bridging cognitive and educational perspectives of spatial reasoning in mathematics Frontiers in Education: Spatial-Mathematics Relations📝 Notes
📜 Euclidean Geometry and Proofs
Master classical Euclidean geometry including axioms, postulates, theorems, and formal proof techniques
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Euclid's Elements Interactive Edition: Complete interactive text of all 13 Books with dynamic diagrams and comprehensive explanations Euclid's Elements Interactive Edition📝 Notes
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Byrne's Euclid: Colorful Interactive Elements: Beautifully designed 1847 edition with interactive diagrams, cross-references, and color-coded proofs Byrne's Euclid: Colorful Interactive Elements📝 Notes
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UGA: Introduction to Proofs in Euclidean Geometry: Academic guide to classical proofs including triangle theorems and inscribed angles UGA: Introduction to Proofs in Euclidean Geometry📝 Notes
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Vaia: Euclidean Geometry Principles: Learn Euclidean geometry axioms, theorems, and proof techniques with modern explanations Vaia: Euclidean Geometry Principles📝 Notes
📊 Coordinate and Analytic Geometry
Apply algebraic methods to geometric problems using coordinate systems, distance formulas, and analytical techniques
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Khan Academy: Analytic Geometry: High school analytic geometry with interactive exercises on coordinate systems and algebraic methods Khan Academy: Analytic Geometry📝 Notes
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Cuemath: Coordinate Geometry Complete Guide: Comprehensive formulas, coordinate plane concepts, and worked examples Cuemath: Coordinate Geometry Complete Guide📝 Notes
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GeeksforGeeks: Coordinate Geometry Concepts: Coordinate geometry fundamentals with formulas, coding applications, and practice problems GeeksforGeeks: Coordinate Geometry Concepts📝 Notes
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GeoGebra: Coordinate & Analytic Geometry: Interactive coordinate geometry demonstrations and manipulable examples GeoGebra: Coordinate & Analytic Geometry📝 Notes
🔄 Geometric Transformations
Understand and apply translations, rotations, reflections, and dilations to geometric figures
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Cuemath: Transformations - Types, Rules, Formulas: Complete guide to geometric transformations with graphs, examples, and practice problems Cuemath: Transformations - Types, Rules, Formulas📝 Notes
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Math is Fun: Transformations: Visual explanations of translations, rotations, reflections, and their properties Math is Fun: Transformations📝 Notes
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Number Analytics: Transformations Guide: Simple guide to understanding translations, rotations, and reflections with real-world applications Number Analytics: Transformations Guide📝 Notes
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CK-12: Translations, Rotations, and Reflections: Interactive middle school lesson on rigid transformations with exercises CK-12: Translations, Rotations, and Reflections📝 Notes
📐 Trigonometry and Right Triangles
Master trigonometric ratios, identities, and their applications in geometry and real-world problems
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Khan Academy: Trigonometry: Complete trigonometry course from basics to advanced applications with practice exercises Khan Academy: Trigonometry📝 Notes
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Khan Academy: Applications of Trigonometry: Real-world applications including heights, distances, and architectural problems Khan Academy: Applications of Trigonometry📝 Notes
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Govst: Trigonometry Short Course: Comprehensive PDF tutorial covering all essential trigonometry concepts Govst: Trigonometry Short Course📝 Notes
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Algonquin College: Geometry & Trigonometry Guide: Study guide combining geometry and trigonometry concepts for college-level mathematics Algonquin College: Geometry & Trigonometry Guide📝 Notes
⭕ Circle Geometry
Explore circle theorems, arc and chord properties, tangent lines, and inscribed angles
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Math Warehouse: Circles Complete Reference: Comprehensive collection covering circumference, area, arcs, chords, secants, tangents, and theorems Math Warehouse: Circles Complete Reference📝 Notes
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Third Space Learning: Circle Chord Theorems: Step-by-step guide to circle chord theorems with examples and practice questions Third Space Learning: Circle Chord Theorems📝 Notes
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K12 LibreTexts: Chords and Central Angle Arcs: Interactive textbook section on circle properties with diagrams and exercises K12 LibreTexts: Chords and Central Angle Arcs📝 Notes
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AMSI: Circle Geometry Module: Australian mathematical sciences institute module on circle geometry theorems AMSI: Circle Geometry Module📝 Notes
🧊 3D Geometry and Solid Shapes
Understand three-dimensional shapes, polyhedra, surface area, volume, and spatial relationships
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Math is Fun: Solid Geometry: Complete guide to 3D geometry covering common solids, polyhedra, volume, and surface area Math is Fun: Solid Geometry📝 Notes
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Khan Academy: Nets of Polyhedra: Video introduction to understanding how 2D nets fold into 3D polyhedra Khan Academy: Nets of Polyhedra📝 Notes
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Fluxspace: Paper Polyhedra Construction: Hands-on STEAM activity for constructing polyhedra and exploring 3D geometry Fluxspace: Paper Polyhedra Construction📝 Notes
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Subject Coach: Vertices, Edges and Faces: Tutorial on polyhedra properties including Euler's formula and volume calculations Subject Coach: Vertices, Edges and Faces📝 Notes
➡️ Vectors in Geometry
Apply vector concepts including dot product, cross product, and vector operations to geometric problems
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GeeksforGeeks: Dot and Cross Products: Comprehensive guide to vector operations with geometric interpretations and applications GeeksforGeeks: Dot and Cross Products📝 Notes
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Khan Academy: Cross Products: Interactive lessons on cross products in multivariable calculus with visual examples Khan Academy: Cross Products📝 Notes
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Better Explained: Understanding the Cross Product: Intuitive explanation of cross products with geometric visualization and real applications Better Explained: Understanding the Cross Product📝 Notes
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Math LibreTexts: The Dot and Cross Product: Academic textbook treatment of vector products with proofs and applications Math LibreTexts: The Dot and Cross Product📝 Notes
🌐 Non-Euclidean Geometry
Explore hyperbolic and spherical geometries beyond Euclidean space and understand curved surfaces
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GeeksforGeeks: Non-Euclidean Geometry Guide: Definition, types, history, and applications of non-Euclidean geometries GeeksforGeeks: Non-Euclidean Geometry Guide📝 Notes
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NonEuclid Interactive Software: Interactive hyperbolic geometry software with articles and JavaScript demonstrations NonEuclid Interactive Software📝 Notes
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Manifolds Unfolded: Spherical Geometry: Modern blog post explaining spherical geometry concepts and properties Manifolds Unfolded: Spherical Geometry📝 Notes
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Wolfram MathWorld: Non-Euclidean Geometry: Mathematical reference for hyperbolic and elliptic geometry with formal definitions Wolfram MathWorld: Non-Euclidean Geometry📝 Notes
🎯 Advanced Geometry Topics
Explore advanced concepts including projective geometry, fractal geometry, and geometric constructions
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Brilliant.org: Projective Geometry: Interactive introduction to projective geometry with visualizations and problem-solving Brilliant.org: Projective Geometry📝 Notes
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Cut the Knot: Compass-Only Constructions: Geometric construction history, examples, and the fundamental theorem with interactive diagrams Cut the Knot: Compass-Only Constructions📝 Notes
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Quanta Magazine: Decoding the Mandelbrot Set: 2024 article on fractal geometry and the mathematics behind the Mandelbrot set Quanta Magazine: Decoding the Mandelbrot Set📝 Notes
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Math Open Reference: Geometric Constructions: Interactive guide to straightedge and compass constructions with step-by-step demonstrations Math Open Reference: Geometric Constructions📝 Notes