Labs
Interactive labs where you try things yourself: change the numbers and watch the result change. Free for now for anyone with an account.
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Geometry, American
66 lessons with experimentsUnit 1: Constructions and Rigid Transformations
Compass and Straightedge Constructions (Build It)
The lesson in the syllabusConstruction Techniques: Perpendicular Bisectors
The lesson in the syllabusConstruction Techniques: Equilateral Triangles
The lesson in the syllabusConstruction Techniques: Parallel and Perpendicular Lines
The lesson in the syllabusRigid Transformations
The lesson in the syllabusDefining Reflections
The lesson in the syllabusDefining Translations
The lesson in the syllabusDefining Rotations
The lesson in the syllabusWorking with Rigid Transformations
The lesson in the syllabusTransformations, Transversals, and Proof (parallel lines)
The lesson in the syllabusTriangle Angle Sum Theorem (One Hundred and Eighty)
The lesson in the syllabus
Unit 2: Congruence
The Perpendicular Bisector Theorem
The lesson in the syllabusSide-Side-Side Triangle Congruence
The lesson in the syllabusSide-Side-Angle (Sometimes) Congruence
The lesson in the syllabus
Unit 3: Similarity
Scale Drawings
The lesson in the syllabusMeasuring Dilations
The lesson in the syllabusDilating Lines and Angles
The lesson in the syllabusSplitting Triangle Sides with Dilation (triangle proportionality)
The lesson in the syllabusConnecting Similarity and Transformations
The lesson in the syllabusConditions for Triangle Similarity
The lesson in the syllabusProving the Pythagorean Theorem
The lesson in the syllabus
Unit 4: Right Triangle Trigonometry
Angles and Steepness
The lesson in the syllabusSpecial Right Triangles: 45-45-90 (Half a Square)
The lesson in the syllabusSpecial Right Triangles: 30-60-90 (Half an Equilateral Triangle)
The lesson in the syllabusRatios in Right Triangles
The lesson in the syllabusWorking with Trigonometric Ratios (sine, cosine, tangent)
The lesson in the syllabusApplying Ratios in Right Triangles
The lesson in the syllabusSine and Cosine in the Same Right Triangle
The lesson in the syllabusUsing Trigonometric Ratios to Find Angles
The lesson in the syllabusSolving Problems with Trigonometry
The lesson in the syllabus
Unit 5: Solid Geometry
Slicing Solids (cross sections)
The lesson in the syllabusCreating Cross Sections by Dilating
The lesson in the syllabusScaling and Area
The lesson in the syllabusCylinder Volumes
The lesson in the syllabusCross Sections and Volume (Cavalieri's principle)
The lesson in the syllabusPrism Volumes
The lesson in the syllabusPrisms and Pyramids
The lesson in the syllabusBuilding a Volume Formula for a Pyramid
The lesson in the syllabusPutting All the Solids Together (pyramids, cones, cylinders, prisms)
The lesson in the syllabusSurface Area and Volume
The lesson in the syllabus
Unit 6: Coordinate Geometry
Rigid Transformations in the Plane
The lesson in the syllabusTransformations as Functions
The lesson in the syllabusTypes of Transformations
The lesson in the syllabusDistances and Circles (equation of a circle)
The lesson in the syllabusCompleting the Square to Find a Circle's Center and Radius
The lesson in the syllabusDistances and Parabolas (focus and directrix)
The lesson in the syllabusEquations of Lines
The lesson in the syllabusParallel Lines in the Plane
The lesson in the syllabusPerpendicular Lines in the Plane
The lesson in the syllabusIntersection Points
The lesson in the syllabusCoordinate Proof
The lesson in the syllabus
Unit 7: Circles
Inscribed Angles
The lesson in the syllabusTangent Lines
The lesson in the syllabusQuadrilaterals in Circles (cyclic quadrilaterals)
The lesson in the syllabusTriangles in Circles (circumscribed circle)
The lesson in the syllabusArcs and Sectors
The lesson in the syllabusPart to Whole (arc length and sector area)
The lesson in the syllabusRadian Measure (A New Way to Measure Angles)
The lesson in the syllabusUsing Radians
The lesson in the syllabus
Unit 8: Conditional Probability
Tables of Relative Frequencies
The lesson in the syllabusCombining Events
The lesson in the syllabusThe Addition Rule
The lesson in the syllabusRelated Events
The lesson in the syllabusConditional Probability
The lesson in the syllabusUsing Tables for Conditional Probability
The lesson in the syllabusUsing Probability to Determine Whether Events Are Independent
The lesson in the syllabus
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Math Lab
Visual models, graphing tools and investigations from primary to secondary, in Arabic and English.
The first visit downloads about 2.8 MB; after that it opens from your device.
Sign in to open itChemistry Lab
2D and 3D experiments, graphs and checked practice, in Arabic and English.
The first visit downloads about 1.2 MB; after that it opens from your device.
Sign in to open itPhysics Lab
Motion, forces, energy, waves, light, heat, fields and space, with experiments you run yourself, in Arabic and English.
The first visit downloads about 0.4 MB; after that it opens from your device.
Sign in to open itComputer Science Lab
Trace code step by step, algorithms, data, logic, a simple CPU, networks, databases and AI, plus the Baccalaureate Sec 2 lessons, in Arabic and English.
The first visit downloads about 0.6 MB; after that it opens from your device.
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