What is meant by a problem-centred approach in the teaching and learning of mathematics? what role is played by the teacher in this kind of approach?

how teachers view mathematics has a strong influence on how they teach.

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

On the first of each month, shelly runs a 5k race. she keeps track of her times to track her progress. her time in minutes is recorded in the table: jan 40.55 july 35.38 feb 41.51 aug 37.48 mar 42.01 sept 40.87 apr 38.76 oct 48.32 may 36.32 nov 41.59 june 34.28 dec 42.71 determine the difference between the mean of the data, including the outlier and excluding the outlier. round to the hundredths place. 39.98 39.22 0.76 1.21

Find the vertex of the function given below y=x^2-6x+1