Students are first guided through the concrete constructions using a compass and a straight edge. They are then moved into more abstract geometric concepts the use of Cabri Jr. for the TI-83/TI-84 calculator.
Each lesson is designed to engage students in group activities and analysis of concepts. Open ended questions are included with each lesson to encourage higher level thinking skills.
Constructions include:
Constructing congruent SegmentsConstructing The Midpoint of any Given SegmentThe Mascheroni Construction of Finding the Midpoint of a SegmentConstructing Congruent AnglesConstructing the Bisector of an AngleConstructing an Equilateral TriangleConstructing a Perpendicular Bisector of a Given SegmentConstructing the Perpendicular to a Line at a Given Point On the LineConstructing the Perpendicular to a Line at a Given Point Not on the LineConstructing a Parallel to a Given LineConstructing a SquareConstructing a Right TriangleConstructing an Isosceles Right TriangleConstructing an Isosceles TrapezoidConstructing the Orthocenter of a Given TriangleConstructing the Centroid of a TriangleConstructing a Tangent to a Circle at a Point On the CircleConstructing a Tangent to a Circle Through a Point in the Exterior of the CircleFinding the Center of a CircleCircumscribe a Circle About a Given TriangleInscribe a Circle in a TriangleDivide a Given Segment into Specified Number of Congruent SegmentsConstructing a Fourth Segment in Proportion to Three Given SegmentsConstructing a Segment Whose Length is the Geometric Mean of Two Other Segments***For those who want to use the calculator to perform these constructions please note that the TI-83/84 comes preloaded with the application. No additional purchases are required.***
Since our founding year of 2003, ETC® has expanded its reach, becoming a Total Montessori company with a goal of understanding and meeting the needs of the Montessori community. ETC® Montessori is the largest publisher of Montessori curriculum serving teachers and students from early childhood through middle school.