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Math UIL 1st place region team in Number Sense



Ideally, age 6 to 15 are best time to learn mental arithmetic.   Class starting date is based on  number of registrants.  Once there are ideal of 10 to 12 students enrollment in a given class available online, Ms. Tseng will call everyone and give a date for the class to start book 1 and meet every week.

If you don't see a time that works for you, please email me and let me know what time and location you prefer. We will gather all inquiries and see if we can form a class.

Our classes can be taught in English and Chinese. You can leave a preferable language if you need us to contact you by phone. 

                          Registration Form 


Preferred Location & Time
  • Plano/Dallas:     1151 W. Parker Road, #203, Plano. TX 75023            Ms. Yvonne Tseng 469-235-5006


                                             New beginner class starts on June 8th, 2019

                                                     Saturdays at 10AM to 11:40 AM 


                                       JSUD will start the class as soon as reaching 10 registrants, thanks


  • Keller/Southlake:  100 West Southlake Blvd. Suite 90,  Southlake, TX 76092   NEW Update 10/03/2018


                          Space is still available 

                                for Sunday afternoon 9/23/2018 new beginner class

                                                from 3:00 pm to 4:30  pm

           For class information and registration, please call teacher Mrs. Ling Hu 817-881-6825 directly for Keller/Southlake location.




We have trained and certified instructors in DFW area are :
Yvonne Tseng ,  Leah Xu ,  Edward Ou ,  Ling Hu ,  Emerald Ou

Contact Information:


     Webmaster: Cathy Steele


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last update 6-24-2014