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An all around constructions project with a "magical" ending! Students receive an instruction sheet, rubric and 5 identical triangles (you will need to copy 5 pages of the triangle, one-sided). There are 5 parts to this project - each part gets constructed on it's own triangle. At the end, student
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\$5.00
15 Ratings
4.0

PDF (1.33 MB)

This is a set of four guided, color-coded notebook pages for the interactive math notebook on the Points of Concurrency. Includes an explanation and vocabulary on the points of concurrency in a triangle and the Triangle Median Theorem. Includes a color-coded diagram and vocabulary on the median an
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\$2.75
14 Ratings
3.9

PDF (4.93 MB)

This project is used in my Common Core Geometry class in Chapter 1 to introduce students to the online tool GeoGebra while investigating centroids, orthocenters, circumcenters, and incenters. Students construct each of the centers listed above and then investigate their properties in an acute, obtus
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CCSS:
\$1.00
8 Ratings
4.0

DOCX (72.63 KB)

Two quizzes focusing on the vocabulary that corresponds with the points of concurrency in triangles. Quizzes also include application problems that require students to not only memorize the definitions, but also to apply the definitions as well
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3 Ratings
4.0

ZIP (34.77 KB)

This activity gives you instructions using a geometer's sketchpad file entitled "Points of Concurrency". With the sketchpad files students will learn the special properties of the circumcenter, incenter, centroid, and orthocenter when they are contructed in a triangle. With sketchpad it is possibl
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2 Ratings
4.0

ZIP (60.01 KB)

With the Geometer's Sketchpad file, contained in the zipped file, you can have students explore the properties of an incenter, a circumcenter, an orthocenter or a centroid. The triangle can be changed by pulling on any of the vertices. This will allow students to build a deeper understand of all f
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\$2.00
2 Ratings
4.0

ZIP (47.64 KB)

This is a power point Jeopardy game that I use to review for the exam. The students love it! It covers medians, centroids, incenters, circumcenters, altitudes and more!
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2 Ratings
4.0

PPT (492 KB)

Points of Concurrency of a Triangle. Contains: Midsegment Circumcenter Perpendicular Bisector Median Angle Bisector
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\$2.00
1 Rating
4.0

PDF (170.48 KB)

Students will investigate where the point of concurrency occurs in an acute and obtuse triangle. Students need a compass, for this lesson.
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\$2.00
1 Rating
3.6

DOCX (62.81 KB)

Of all of the points of concurrency in a triangle, the centroid seems to be the one that most readily lends itself to a "hands-on" approach: I have the students create the centroid of a cardboard triangle by measuring and drawing the median to each side; they then "balance" their triangle on the tip
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DOC (121 KB)

When my Geometry students are learning to apply concepts involving points of concurrency (centroid/center of mass, incenter, circumcenter, orthocenter), they need a lot of assistance from me and other students. Before giving them a summative assessment, I like to give them a group/practice test abou
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DOC (87 KB)

This activity has students investigate the changes that occur to the location of points of concurrency when the type of triangle changes. Only circumcenter, incenter, and centroid are investigated. (Orthocenter will be added later.) Students will need to have a rudimentary knowledge of how to u
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PDF (334.64 KB)

As our EOC format changes from multiple choice to computer-based and performance-based testing, our assessments must change as well. This rigorous quiz bundle contains 4 quiz versions and assesses student ability to solve problems involving points of concurrency. ++++++++++++++++++++++++++++++++++
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CCSS:
\$1.25
\$1.13
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PDF (557.6 KB)

A clear visual description of the points of concurrency in triangles. Includes hints for remembering them and explanation of special cases of equilateral and isosceles triangles.
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DOCX (493.28 KB)

Notes with fill in the blank spots, and blank triangles to create the four special types of concurrency in a triangle (Incenter, Circumcenter, Centroid, and Orthocenter.)
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PDF (44.79 KB)

This document can be used as notes or a quiz or both! It is in the form of a graphic organizer with space to take notes over Circumcenter, Incenter, Centroid and Orthocenter. An answer key is included. Enjoy!
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DOCX (427.32 KB)

This is a one-page chart with the points of concurrency for triangles. For each type of point, there is a picture, type of construction used to find the point, and notes about the characteristics of the points. My students like the one-page reference sheet!
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FREE
4 Ratings
4.0

PDF (24.99 KB)

Geometry - Relationships within Triangles - Points of Concurrency Students place an ornament on each triangular section of the tree by finding the orthocenter, centroid, circumcenter, and incenter.
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FREE
1 Rating
4.0

DOCX (36.51 KB)

A summary sheet for features and points of concurrency for triangles, including special properties formed by each. Includes altitudes and orthocenter; angle bisector and incenter; median and centroid; perpemdicular bisector and circumcenter; and midsegment.
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PDF (211.13 KB)

This is a graphic organizer to help students remember which line segments in a triangle lead to which point of concurrency. Altitude Angle Bisector Median Perpendicular Bisector
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FREE
1 Rating
4.0

PDF (1.96 MB)

This is lesson 15 of geometry A. This bundle includes how to find lines and angles based on points of concurrency. Included are guided notes, SmartBoard lesson, and worksheet.
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ZIP (926.63 KB)

Aligned with Common Core and FL state standards
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DOCX (100.9 KB)

Students use GeoGebra (or Sketchpad) to construct perpendicular bisectors, angle bisectors, medians, and altitudes of a triangle. The project requires that all theorems associated with these concurrent lines be labeled. Also, the points of concurrency are labeled (circumcenter, incenter, centroid, a
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FREE
2 Ratings
3.8

DOCX (14.97 KB)

Points of Concurrency Graphic Organizer
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FREE
2 Ratings
4.0

PDF (56.04 KB)

showing 1-24 of 126 results

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