Unless your child needs manipulatives to understand mathematical concepts, I would say 'no'. BUT I don't know ANYTHING about this business - only teaching math :)
Universal concept of mental arithmatics ,a program based on learning mental arithmatics by using abacus(chinese calculator, for age 5 to 12years). Does any parents used this program for their kids? I found this program on Dubai school listing website. My kids have done their beginner course during summer. Now i need some other parents reveiw if their children r doing it during the school year, is it worth spending time n money on it. TIA.