Math

 Math Fraction.png Chavez, Diana
Math

Email: diana.chavez@stisd.net
Conference periods: 2A, 1/2B 
  • Class of 2019 Sponsor
  • IB Coordinator
 

 

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Demo, Terry
Mathematics, BS

Email: terry.demo@stisd.net
Conference Periods: 2A, 2B
        
  

Experience: 27 Years

  • Masterminds Sponsor

Hobbies and Special Interests:
Golf, travel, movies, spending
time with family.       

     
Math Fraction.png



Leonardelli, Virginia
Mathematical Science, MS

Email:
virginia.leonardelli@stisd.net 
Conference Periods: 3A, 3B




Experience: 11 years

  • BETA SBDM Chair
  • STISD EIC Member
  • PASF Sponsor
  • IB Math SL Teacher

Special Interests and Hobbies:
Spending time with my family,
camping, and watching a lot of movies. 



Math Fraction.png 




Reyna, Saul
Mathematics, BS MS

Email: saul.reyna@stisd.net
Conference Periods: 3A, 3B



Experience: 12 years

  • UIL Math 
  • UIL Number Sense 

Hobbies and Special Interests:
Traveling and gaming. 

 
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Silva, Mardonnia
Mathematics, MS

Email: mardonnia.silva@stisd.net
Conference Periods: 3A, 4B

STISD Experience: 19 years 

  • Math Department Team Leader
  • NHS Sponsor
  • IB Math SL Teacher

Hobbies and Special Interests:
Traveling, gardening, and chess.