2019-2020 Calculator Purchase
The CSH Math Department will be making a bulk purchase of TI-Nspire CX II (non-CAS) graphing calculators in May 2019. Because these are part of a bulk order, they will be sold at a discounted price of $130. If you would like to benefit from these savings and order a calculator from us, please fill out this form ( get a check delivered to Keri Brusven (Math Department Chair) by Friday, May 10th, 2019. Checks should be made out to Chatfield Senior High School for $130. Calculators will be delivered to students during the first day of class in August. 
(Contact: Keri Brusven, Math Department Chair,

Transforming the Task - AMPED and GiC
Beginning in the fall of 2019, we are excited to offer two new course which focus on transforming the task in student learning:

AMPED - Algebra I with Manufacturing Processes, Entrepreneurship, and Design
AMPED students will operate a business running an advanced fabrication lab customizing textile products and manufacturing other items comprised of wood, metal, and/or plastic. The proceeds generated from the business aspect of the problem will be utilized to self fund the venture and provide philanthropic opportunities for students through community service or monetary gifts to local charities.
Link to flyer

GiC - Geometry in Construction
GiC students will be taught Geometry through real world, project based lessons, labs, and activities creating a richer, more robust learning environment for students. Students work on developing and understanding the skills necessary to thrive in the modern workplace including working in teams for both the math side and construction side.
Link to flyer

Find out more:
NBC news did a report on AMPED and GiC where the two programs were created, Loveland High School:
Link to video

Graphing Calculator Requirement for Math Courses

A TI-Nspire CX graphing calculator (non-CAS) is required for all math courses

We would prefer that students do NOT us a TI-89, TI-92, or TI-Nspire CAS. None of these calculators may be used on the ACT or TCAP tests. Students will need to have their calculators the first day of class. These calculators may be purchased at many local stores and discount warehouses.
Students who qualify for the free or reduced lunch programs should see their math teacher in August. Students are encouraged to engrave their names on their calculators. The CSH math teachers will have an engraver available during the first two weeks of school.

CSH requires graphing calculators for many classes for the following reasons:
1. The state and county math standards require students to use the technology.
2. Assignments depend on students having access to a graphing calculator both in class and at home.
3. Students are required to use a graphing calculator on two of the four sections of the AP Calculus tests and all sections of the AP Statistics exam.
4. The SAT and the ACT college entrance tests permit the use of graphing calculators.

Please save the entire back of the retail package card (not just the technology rewards point symbol) from any new calculator purchase and give it to a math teacher in August.

Texas Instruments Nspire image
Math Department Seeking Texas Instruments Technology Rewards Points
If you purchase a Texas Instruments Graphing Calculator for your student, the math department would like the entire back of the retail package card (not just the technology rewards points symbol). With this card, we can qualify for free technology items from Texas Instruments for Chatfield Senior High School. Give the card to any math teacher. Thank you.

Please turn in this entire card:
Retail package card for TI-Nspire CX graphing calculator

 Are you interested in finding out more about Math Course Options?

Please see the CSH Math Course Flowchart file (download at the bottom of this page) for an enlarged version of the course flowchart:


Contact Information:






Michael Alonzo Alonzo, Michael Algebra 2 
Algebra Intermediate
Computer Programming
Michael Alonzo Website

Keri Brusven

Brusven, Keri

Algebra 1
AP Statistics 
Department Chair
Keri Brusven Website
 Ben Mack Mack,
Algebra 1
Integrated Math 1
Ben Mack Website 

Jeff Mages

Mages, Jeff Geometry
Integrated Math 2
Jeff Mages Website
 Deahdra Menzies Menzies, Deahdra Algebra 1
Integrated Math 1
Deahdra Menzies Website
Alma Moore Moore, Alma Geometry
Geometry Honors
Alma Moore Website
Matt Moore Moore, Matt AP Calculus AB 
AP Calculus BC
Algebra 3
Matt Moore Website
Travis Moore Moore, Travis Geometry
Algebra 2 Honors
Trigonometry Honors
Travis Moore Website

Chris Morroni

Morroni, Chris Algebra 1 
Discrete Math
Chris Morroni Website

Melissa Mosher

Mosher, Melissa Integrated Math 2
Melissa Mosher Website
 Greg Myers Myers, Greg Intermediate Algebra
Algebra 2
Greg Myers Website
Sandy Valerio Valerio, Sandy Algebra 2 Honors
AP Statistics
Instructional Coach
Sandy Valerio Website
Patti Vaninger Vaninger, Patti Algebra 2 
Patti Vaninger Website
Mike Yansak Yansak, Mike Geometry Honors
Trigonometry Honors
Mike Yansak Website


Math Department Vision:

1. As a department, we are committed to supporting each other, collaborating regularly, teaching consistent standards, and enforcing consistent expectations.

2. As a department, we are committed to offering rigorous classes at all level so that all students are challenged and prepared to continue their education and function in their chosen career field.

3. As a department, we are committed to incorporating technology to produce forward-thinking students who are prepared for the 21st century.

4. As a department, we are committed to implementing innovative teaching strategies so students can efficiently and logically apply their math abilities to real-world problems.

5. As a department, we are committed to teaching an enriched curriculum based on the Colorado Content Standards.



 Characteristics of Mathematically Proficient Students

1. Make sense of problems and persevere in solving them.

2. Reason abstractly and quantitatively.

3. Construct viable arguments and critique the reasoning of others.

4. Model with mathematics.

5. Use appropriate tools strategically.

6. Attend to precision.

7. Look for and make use of structure.

8. Look for and express regularity in repeated reasoning.

Source: Common Core State Standards for Mathematics, p.6

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