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Geometry Proofs Group Practice Test Spring 2012 with Answer Key (Editable)
When my Geometry students are learning proofs, 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 about a week prior, to give them a chance to study together before the "real" test a week later. (When I cal
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Geometry Group Practice Test Proofs and Concurrency Fall 2013 (Editable)
When my students are learning to apply concepts involving these topics: - CPCTC - Geometric Proofs - Inductive Reasoning - Equilateral and Isosceles Triangles - Interior Angles Theorem - Midpoint Formula - Parallel and Perpendicular Lines - Slope, Midpoint, and Distance - Constructions (Duplicating
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Centers of Triangles Doodle Notes
Centroid, Incenter, Circumcenter, & Orthocenter for a Triangle: 2-page "doodle notes" - When students color or doodle in math class, it activates both hemispheres of the brain at the same time. There are proven benefits of this cross-lateral brain activity:- new learning- relaxation (less math
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Triangle Centers Coordinate Geometry: Common Core Performance Task
I use this performance task assessment at the conclusion of our unit on triangle properties. Ultimately the unit is about making strategic use of mathematical tools, an idea that is explored through the following content items: * Perpendicular bisectors and angle bisectors. * Triangle medians and mi
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Treasure Hunters: Centers of Triangles - 21st Century Math Project
Ahoy! Come aboard ye triangular voyage of yer lifetime! Please note this 21st Century Math Project is not written in English. It is written in Pirate.Bring centers of triangles to life in this project. Although there have never been any documented pirate treasures hidden at the centers of triangles,

Also included in: 21st Century Geometry Math Project Starter Bundle -- Common Core Aligned

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Triangle Special Segments Bundle
Triangle Special Segments Bundle Save 27% with this Triangle Bundle! INB Differentiable Notes, Scavenger Hunt Cards and Models included! The following concepts are covered: Midsegments Perpendicular Bisectors Circumcenters Angle Bisectors Incenters Medians Centroids Altitudes Orthocenters Euler
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Concurrent Points in Triangles - Geometer's Sketchpad Mini Lesson
Having trouble teaching the concepts of Circumcenter, Incenter, Centroid and and Orthocenter? Are you students getting frustrated with all of the different steps? After teaching this lesson for many years in a row I have noticed that even as a teacher I have trouble remembering which segments go w
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Triangle Segments - Median, Altitude, Mid-segments, Bisectors
This hands-on exploration has students cutting, folding, and measuring lengths and angles to encourage the discovery of the properties of mid-segments, and the intersections of medians, perpendicular bisectors, angle bisectors and altitudes. The terms orthocenter, incenter, centroid and circumcenter
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