Main content
Learn
Cousin Fal's shape collectionRecognizing shapesPolygons review
Practice
Compare shapesGet 5 of 7 questions to level up!
Name shapes 3Get 5 of 7 questions to level up!
Name shapes 4Get 5 of 7 questions to level up!
Learn
Intro to quadrilateralRight angles in shapes (informal definition)Identifying quadrilateralsQuadrilateral propertiesQuadrilateral typesClassifying quadrilateralsKites as a geometric shapeQuadrilaterals review
Practice
Identify quadrilateralsGet 5 of 7 questions to level up!
Classify quadrilateralsGet 3 of 4 questions to level up!
Analyze quadrilateralsGet 3 of 4 questions to level up!
Quadrilateral typesGet 3 of 4 questions to level up!
Learn
Classifying triangles Classifying triangles by anglesWorked example: Classifying triangles Construct a triangle with constraintsTypes of triangles review
Practice
Identify triangles by anglesGet 5 of 7 questions to level up!
Identify triangles by side lengthsGet 5 of 7 questions to level up!
Constructing trianglesGet 3 of 4 questions to level up!
Learn
Classifying shapes by line and angles typesClassifying shapes by lines and angles
Practice
Classify shapes by line and angle typesGet 5 of 7 questions to level up!
Properties of shapesGet 3 of 4 questions to level up!
Learn
Angles in a triangle sum to 180° proofTriangle exterior angle exampleWorked example: Triangle angles (intersecting lines)Worked example: Triangle angles (diagram) Triangle angle challenge problemTriangle angle challenge problem 2Ordering triangle sides and angles exampleTriangle angles review
Practice
Find angles in trianglesGet 5 of 7 questions to level up!
Find angles in isosceles trianglesGet 3 of 4 questions to level up!
Finding angle measures using trianglesGet 5 of 7 questions to level up!
Ordering triangle sides and anglesGet 5 of 7 questions to level up!
Learn
Counting faces and edges of 3D shapesRecognizing common 3D shapes
Practice
Identify parts of 3D shapesGet 5 of 7 questions to level up!
Identify geometric solids (3D shapes)Get 5 of 7 questions to level up!

About this unit

Classify shapes and solve problems using what we know of the properties of shapes.