發送短信

數:

提供者:

CAPTCHA:

  ______     ___                _____    _    _   
 /_____//   / _ \\      ___    |  ___|| | || | || 
 `____ `   / //\ \\    /   ||  | ||__   | || | || 
 /___//   |  ___  ||  | [] ||  | ||__   | \\_/ || 
 `__ `    |_||  |_||   \__ ||  |_____||  \____//  
 /_//     `-`   `-`     -|_||  `-----`    `---`   
 `-`                     `-`

Please enter what you see:

發送短信 : Representation of problem solving in Singaporean primary Mathematics textbooks with respect to types, polya's model and heuristics