In the early stages, there may be no symptoms associated with hip impingement or symptoms may be mild or vague. 1  Some typical symptoms include: 2  Stiffness in the thigh, hip, or groin. 3  The inability to flex the hip beyond a right angle.
The framework of Singapore Math is developed around the idea that learning to problem-solve and develop mathematical thinking are the key factors in being successful in math.
Thanks for the A2A but I am not sure if I am the right person to answer it. Still I will try. I did some digging. Though it has not been clearly stated anywhere but it must be a little more than $119 per exam for candidates from schools in Singapore which conduct AP exams. Since you are a private candidate, you will face supplementary charges imposed by the school to recover the additional proctoring and administration costs.