Table 3 Encoding and scoring of a sample of problems posed in the medical situation.

From: The selections and differences in mathematical problem-posing strategies of junior high school students

Posed problems

Identifying PC

Determining the strategy/substrategy

Scoring

Original response

Posed problems recorded

(1) Assuming the time elapsed x, and the blood drug content y, write a function. (2) Drawing the figure of the function. (3) What time x, y has the maximum/minimum value?

Q1: Assuming the time elapsed x and the blood drug content y, write down a function.

PC 3

A1/B3

Score(A1) = 2;

Score(A2) = 0;

Score(A) = 2 + 0 = 2.

Score(B1) = 0;

Score(B2) = 1;

Score(B3) = 1;

Score(B) = 0 + 1 + 1 = 2.

Q2: Drawing the figure of the function.

Q3: What time does x, y have the maximum value?

PC 2

A1/B2

Q4: What time does x, y have the minimum value?

Back to article page