required (hard)helpful (soft)NumberComputational FluencyPatterns & AlgebraGeometry & MeasurementData & ProbabilityCalculusComputer ScienceFinancial LiteracyLife ScienceChemistryPhysicsEarth & Space ScienceEnvironmental ScienceScience PracticesPhonics & FoundationsReading & ComprehendingVocabulary & Word StudyGrammar & ConventionsWriting & CreatingLiterature & AnalysisOral & Spoken Language
Target↳ Axioms and the parallel postulateNon-Euclidean GeometriesG12
↳ Proving the triangle angle theoremsParallel and Perpendicular LinesG12
↳ Proving congruence and similarity by transformationTransformations of 2D ShapesG12
↳ Proving two lines are parallelParallel and Perpendicular LinesG12
↳ Writing a two-column proofParallel and Perpendicular LinesG12
↳ Composing transformationsTransformations of 2D ShapesG12
↳ Dilations and similarityTransformations of 2D ShapesG12
↳ Angle pairs formed by a transversalParallel and Perpendicular LinesG12
↳ Proving that a construction worksGeometric ConstructionsG12
↳ Translations, rotations and reflectionsTransformations of 2D ShapesG12
Forms of Mathematical ReasoningG11
Press enter or space to select a node. You can then use the arrow keys to move the node around. Press delete to remove it and escape to cancel.
Press enter or space to select an edge. You can then press delete to remove it or escape to cancel.
learn the items on the left, then this · hover a card to trace its chain · click a lessoned card to open it