Lesson Plan: Lesson plans were written by Maryland mathematics educators and could be used when teaching the concepts.
Goal 2 Geometry, Measurement, And Reasoning
Expectation 2.2 The student will apply geometric properties and relationships to solve problems using tools and technology when appropriate.
Indicator 2.2.3 The student will use inductive or deductive reasoning.
Concurrent Lines in Triangles
The student will investigate points of concurrency in triangles and apply these concepts to real-world situations.
Other Indicators Addressed
2.1.4 The student will construct and/or draw and/or validate properties of geometric figures using appropriate tools and technology.
Two to three 50-minute lessons or one to two 90-minute lessons
Prerequisite Concepts Needed
Basic vocabulary: line, line segment, angle, ray, distance, congruence, perpendicular, bisector, midpoint, distance between two points, distance between a point and a line, median of a triangle, altitude of a triangle
Students should understand the relationship of a figure and its image after a reflection over a line.