-on how pupils develop mathematical thinking during t&l
-mathematical thinking develop from logic
-teacher needs to understand maths to help children
-terjemah abstractions thru concrete objects
-looking into how pupils think, and tchr needs to adjust to the pupils thinking about maths
-pupils need to picture maths
-relate dgn problem solving and it must be in accordance with pupils everyday life experience
-tcr should reoriented tchng into problem based teaching, logical reasoning ability
-mathematics has the highest problem solving thinking, and it is interrelated between skills
-heuristics=berturutan (step by step), and heuristics thinking develop from systematically thinking
-tcr should reflect on their tchng method
-conjecture=pernyataan logik
-teacher should taught mathematical thinking, not only technical applications of maths (hafalan)
