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SIGMA SOROBAN | MATH SCHOOL

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SIGMA SOROBAN | MATH SCHOOL

  • About
    • Director's Notes
    • Frequently Asked Questions
  • Class Info
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    • Class Schedule
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    • 2023
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    • 2021
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Dec
28
1:00 PM13:00

World Abacus Classic (Practice)

  • Saturday, December 28, 2024
  • 1:00 PM 4:00 PM 13:00 16:00
  • Saitama (map)
  • Google Calendar ICS
View Event →
Dec
29
10:00 AM10:00

World Abacus Classic (Contest)

  • Sunday, December 29, 2024
  • 10:00 AM 4:00 PM 10:00 16:00
  • Saitama (map)
  • Google Calendar ICS
View Event →
Aug
11
12:00 PM12:00

All-USA Calculation Contest

  • Sunday, August 11, 2024
  • 12:00 PM 4:00 PM 12:00 16:00
  • 100 South Milpitas Boulevard Milpitas, CA, 95035 United States (map)
  • Google Calendar ICS
View Event →
Aug
7
12:00 PM12:00

All-USA Calculation Contest

  • Sunday, August 7, 2022
  • 12:00 PM 3:30 PM 12:00 15:30
  • 100 South Milpitas Boulevard Milpitas, CA, 95035 United States (map)
  • Google Calendar ICS
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Mar
27
10:00 AM10:00

Mental Calculation Contest 2022 (Zoom)

  • Sunday, March 27, 2022
  • 10:00 AM 12:00 PM 10:00 12:00
  • Google Calendar ICS
View Event →
Mar
20
4:30 PM16:30

League Special Session (Zoom)

  • Sunday, March 20, 2022
  • 4:30 PM 6:00 PM 16:30 18:00
  • Google Calendar ICS
View Event →
Feb
5
5:30 PM17:30

Dictation Class EXAM (Zoom)

  • Saturday, February 5, 2022
  • 5:30 PM 7:45 PM 17:30 19:45
  • Google Calendar ICS

Group A Check-in 5:15pm | 5:30-6:00pm
Group B Check-in 5:55pm | 6:10-6:45pm
Group C Check-in 6:45pm | 7:00-7:45pm

View Event →
Jan
29
5:30 PM17:30

Dictation Class (Zoom)

  • Saturday, January 29, 2022
  • 5:30 PM 7:45 PM 17:30 19:45
  • Google Calendar ICS

Group A Check-in 5:15pm | 5:30-6:00pm
Group B Check-in 5:55pm | 6:10-6:45pm
Group C Check-in 6:45pm | 7:00-7:45pm

View Event →
Jan
16
4:30 PM16:30

League Special Session (Zoom)

  • Sunday, January 16, 2022
  • 4:30 PM 6:00 PM 16:30 18:00
  • Google Calendar ICS
View Event →
Jan
15
5:30 PM17:30

Dictation Class (Zoom)

  • Saturday, January 15, 2022
  • 5:30 PM 7:45 PM 17:30 19:45
  • Google Calendar ICS

Group A Check-in 5:15pm | 5:30-6:00pm
Group B Check-in 5:55pm | 6:10-6:45pm
Group C Check-in 6:45pm | 7:00-7:45pm

View Event →
Dec
19
4:30 PM16:30

League Special Session (Zoom)

  • Sunday, December 19, 2021
  • 4:30 PM 6:00 PM 16:30 18:00
  • Google Calendar ICS
View Event →
Dec
18
5:30 PM17:30

Dictation Class (Zoom)

  • Saturday, December 18, 2021
  • 5:30 PM 7:45 PM 17:30 19:45
  • Google Calendar ICS

Group A Check-in 5:15pm | 5:30-6:00pm
Group B Check-in 5:55pm | 6:10-6:45pm
Group C Check-in 6:45pm | 7:00-7:45pm

View Event →
Dec
4
5:30 PM17:30

Dictation Class (Zoom)

  • Saturday, December 4, 2021
  • 5:30 PM 7:45 PM 17:30 19:45
  • Google Calendar ICS

Group A Check-in 5:15pm | 5:30-6:00pm
Group B Check-in 5:55pm | 6:10-6:45pm
Group C Check-in 6:45pm | 7:00-7:45pm

View Event →
Nov
21
4:30 PM16:30

League Special Session (Zoom)

  • Sunday, November 21, 2021
  • 4:30 PM 6:00 PM 16:30 18:00
  • Google Calendar ICS
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Nov
7
to Nov 14

2021 Correspondence Contest

  • Sun, Nov 7, 2021 9:00 AM 09:00 Sun, Nov 14, 2021 6:00 PM 18:00
  • Google Calendar ICS
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Nov
6
5:30 PM17:30

Dictation Class EXAM (Zoom)

  • Saturday, November 6, 2021
  • 5:30 PM 7:45 PM 17:30 19:45
  • Google Calendar ICS

Group A Check-in 5:15pm | 5:30-6:00pm
Group B Check-in 5:55pm | 6:10-6:45pm
Group C Check-in 6:45pm | 7:00-7:45pm

View Event →
Oct
30
5:30 PM17:30

Dictation Class (Zoom)

  • Saturday, October 30, 2021
  • 5:30 PM 7:45 PM 17:30 19:45
  • Google Calendar ICS

Group A Check-in 5:15pm | 5:30-6:00pm
Group B Check-in 5:55pm | 6:10-6:45pm
Group C Check-in 6:45pm | 7:00-7:45pm

View Event →
Nov
3
9:30 AM09:30

Southern California Contest

  • Sunday, November 3, 2019
  • 9:30 AM 12:00 PM 09:30 12:00
  • San Diego (map)
  • Google Calendar ICS
View Event →
Sep
29
3:00 PM15:00

Sigma Festa

  • Sunday, September 29, 2019
  • 3:00 PM 5:30 PM 15:00 17:30
  • Miyako Hybrid Hotel (map)
  • Google Calendar ICS
View Event →
Aug
18
9:30 AM09:30

Japan-US Friendship Contest

  • Sunday, August 18, 2019
  • 9:30 AM 1:00 PM 09:30 13:00
  • Anaheim (map)
  • Google Calendar ICS
View Event →
Aug
9
9:00 AM09:00

All-USA Abacus Contest

  • Friday, August 9, 2019
  • 9:00 AM 3:00 PM 09:00 15:00
  • Banff Canada (map)
  • Google Calendar ICS
View Event →
Aug
8
2:00 PM14:00

All-USA Abacus Contest Practice

  • Thursday, August 8, 2019
  • 2:00 PM 5:00 PM 14:00 17:00
  • Banff Canada (map)
  • Google Calendar ICS
View Event →
Mar
31
9:00 AM09:00

USA Mental Calculation Contest

  • Sunday, March 31, 2019
  • 9:00 AM 5:00 PM 09:00 17:00
  • Culture Center of Taipei Econ & Culture Office (map)
  • Google Calendar ICS
View Event →
Nov
4
9:00 AM09:00

Southern California Contest

  • Sunday, November 4, 2018
  • 9:00 AM 2:00 PM 09:00 14:00
  • Miyako Hybrid Hotel (map)
  • Google Calendar ICS

Registration Form

View Event →
Aug
18
9:00 AM09:00

US-Japan Friendship Contest

  • Saturday, August 18, 2018
  • 9:00 AM 12:30 PM 09:00 12:30
  • 21151 South Western Avenue Suite#210 Torrance, CA, 90501 United States (map)
  • Google Calendar ICS
View Event →
Aug
12
9:00 AM09:00

All-USA Abacus Contest

  • Sunday, August 12, 2018
  • 9:00 AM 3:00 PM 09:00 15:00
  • Culture Center of Taipei Econ & Culture Office (map)
  • Google Calendar ICS
View Event →
Aug
11
2:00 PM14:00

All-USA Abacus Contest Practice

  • Saturday, August 11, 2018
  • 2:00 PM 4:20 PM 14:00 16:20
  • Culture Center of Taipei Econ & Culture Office (map)
  • Google Calendar ICS
View Event →
May
1
to May 5

USA Correspondence Contest

  • Tue, May 1, 2018 9:00 AM 09:00 Sat, May 5, 2018 9:00 PM 21:00
  • Google Calendar ICS
View Event →
Apr
8
9:00 AM09:00
Contest Registration Form

USA Mental Calculation Contest

  • Sunday, April 8, 2018
  • 9:00 AM 5:00 PM 09:00 17:00
  • Miyako Hybrid Hotel (map)
  • Google Calendar ICS

Click below to view the registration form

Contest Registration Form

View Event →
Dec
28
to Jan 2

School Closed

  • Thu, Dec 28, 2017 9:00 AM 09:00 Tue, Jan 2, 2018 9:00 PM 21:00
  • Google Calendar ICS
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Dec
25
9:00 AM09:00

School Closed

  • Monday, December 25, 2017
  • 9:00 AM 9:00 PM 09:00 21:00
  • Google Calendar ICS
View Event →
Nov
23
to Nov 26

School Closed

  • Thu, Nov 23, 2017 9:00 AM 09:00 Sun, Nov 26, 2017 8:30 AM 08:30
  • Google Calendar ICS
View Event →

Sigma main headquarters


1740 Cabrillo street
west covina, ca 91791-2661
(626) 915-4486

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