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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 midsegments.
* Triangle centers: circumcenter, incenter, orthocenter, centroid.
* Geometric constructions: compass & straightedge, paper folding, geometry software, and coordinate geometry.
This particular assessment evaluates several content items and their skills with the coordinate geometry tool. I have included three versions of the assessment, to accommodate varying levels of student ability: A, B, and C, in ascending order of difficulty. Answer keys and student rubrics are included. Aligned with common core standards for high school geometry.
Also included is a cover sheet with common core standards alignment, student objectives, essential questions, and teacher notes.
The complete file (minus answer keys) is available for free preview on the right. Feel free to take a free look before you purchase.
I am a new seller. Your feedback is my foundation to s good start. Follow me and be updated as I post new items.
* Perpendicular bisectors and angle bisectors.
* Triangle medians and midsegments.
* Triangle centers: circumcenter, incenter, orthocenter, centroid.
* Geometric constructions: compass & straightedge, paper folding, geometry software, and coordinate geometry.
This particular assessment evaluates several content items and their skills with the coordinate geometry tool. I have included three versions of the assessment, to accommodate varying levels of student ability: A, B, and C, in ascending order of difficulty. Answer keys and student rubrics are included. Aligned with common core standards for high school geometry.
Also included is a cover sheet with common core standards alignment, student objectives, essential questions, and teacher notes.
The complete file (minus answer keys) is available for free preview on the right. Feel free to take a free look before you purchase.
I am a new seller. Your feedback is my foundation to s good start. Follow me and be updated as I post new items.
Teaching Duration:
N/A
Type of Resource:
Answer Key:
N/A
# of Pages/Slides:
22
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14182.26 KB | 22 Pages
FEEDBACK
Mary Sieczkowski
I have only used Part A (all three pages) but it was a great revisiting of medians, mid segments & perpendicular bisectors. We are getting ready for winter final exams and it helped clarify some information we had covered quickly. The visual, actually drawing the segments really helped a lot of the class.
December 12, 2012 
Jennifer Lamb (TpT Seller)
I really like this activity. I love how clear it is and how nicely designed it is. I look forward to seeing more of your work.
October 16, 2012
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QUESTIONS AND ANSWERS:
Tara Costigliola (TpT Seller)
How long did it take your students to complete this assessment?
November 11, 2012
The Allman Files (TpT Seller)
As a collaborative assessment, you should allow about 30 minutes, but I'd say that's a ball-park estimate. You should consider level of students, comfort with the content, and experience with this type of assessment when blocking time in your schedule. I always find that each class presents different needs. Some need lots of coaxing to get those verifications and justifications out onto the paper. I hope it goes well for you.
November 12, 2012
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I've taught high school mathematics in many settings: public, private, urban, suburban, and rural. I have also worked in an instructional and editorial capacity for Pearson Education. I've benefited from the leadership of some extraordinary mentors throughout my career and I look forward to sharing my expertise with you.
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