SCCI Digital Library and Forum
Lines, line segments, and rays (K-A)
Geometric definitions (K-A)
Measuring segments (K-A)
Parallel and perpendicular (K-A)
Points, lines, & planes (K-A)
The golden ratio (K-A)
Angle introduction (K-A)
Angle types (K-A)
Angles between intersecting lines (K-A)
Angles in circles (K-A)
Constructing angles (K-A)
Measuring angles (K-A)
Sal's old angle videos (K-A)
Vertical, complementary, and supplementary angles (K-A)
Angles with polygons (K-A)
Classifying geometric shapes (K-A)
Curves and polygons (K-A)
Geometric solids (3D shapes) (K-A)
Properties of shapes (K-A)
Altitudes (K-A)
Angle bisectors (K-A)
Bringing it all together (K-A)
Medians & centroids (K-A)
Perpendicular bisectors (K-A)
Triangle angles (K-A)
Triangle inequality theorem (K-A)
Triangle types (K-A)
Quadrilateral proofs & angles (K-A)
Quadrilateral types (K-A)
Coordinate plane: 4 quadrants (K-A)
Coordinate plane: quadrant 1 (K-A)
Drawing polygons in the coordinate plane (K-A)
Quadrants on the coordinate plane (K-A)
Quadrilaterals on the coordinate plane (K-A)
Reflecting points on coordinate plane (K-A)
Advanced area with triangles (K-A)
Area and circumference of circles (K-A)
Area of parallelograms (K-A)
Area of rectangles (K-A)
Area of shapes on grids (K-A)
Area of trapezoids & composite figures (K-A)
Area of triangles (K-A)
Count unit squares to find area (K-A)
Perimeter (K-A)
Cross sections of 3D objects (K-A)
Heron's formula (K-A)
Koch snowflake fractal (K-A)
Surface and volume density (K-A)
Surface area (K-A)
Volume of cones, cylinders, and spheres (K-A)
Volume of rectangular prisms (K-A)
Volume with fractions (K-A)
Pythagorean theorem (K-A)
Pythagorean theorem and distance between points (K-A)
Pythagorean theorem application (K-A)
Pythagorean theorem proofs (K-A)
Dilations (K-A)
Introduction to rigid transformations (K-A)
Old transformations videos (K-A)
Properties and definitions of transformations (K-A)
Reflections (K-A)
Rotations (K-A)
Symmetry (K-A)
Translations (K-A)
Proofs of general theorems that use triangle congruence (K-A)
Theorems concerning quadrilateral properties (K-A)
Theorems concerning triangle properties (K-A)
Transformations and congruence (K-A)
Triangle congruence (K-A)
Working with triangles (K-A)
Angle bisector theorem (K-A)
Definitions of similarity (K-A)
Introduction to triangle similarity (K-A)
Solving modeling problems with similar and congruent triangles (K-A)
Solving problems with similar and congruent triangles (K-A)
Solving similar triangles (K-A)
Introduction to the trigonometric ratios (K-A)
Modeling with right triangles (K-A)
Sine and cosine of complementary angles (K-A)
Solving for a side in a right triangle using the trigonometric ratios (K-A)
Solving general triangles (K-A)
Special right triangles (K-A)
The law of cosines (K-A)
The law of sines (K-A)
The reciprocal trigonometric ratios (K-A)
Trigonometric ratios and similarity (K-A)
Arc length (from degrees) (K-A)
Arc length (from radians) (K-A)
Arc measure (K-A)
Area of inscribed triangle (K-A)
Circle basics (K-A)
Expanded equation of a circle (K-A)
Inscribed angles (K-A)
Inscribed shapes problem solving (K-A)
Introduction to radians (K-A)
Properties of tangents (K-A)
Sectors (K-A)
Standard equation of a circle (K-A)
Challenge: Distance between a point and a line (K-A)
Distance and midpoints (K-A)
Dividing line segments (K-A)
Equations of parallel and perpendicular lines (K-A)
Parallel and perpendicular lines on the coordinate plane (K-A)
Problem solving with distance on the coordinate plane (K-A)
Constructing a line tangent to a circle (K-A)
Constructing bisectors of lines and angles (K-A)
Constructing circumcircles and incircles (K-A)
Constructing regular polygons inscribed in circles (K-A)
Worked examples (K-A)