In TL L1 homework you have read The Next Generation Science Standards (NGSS). The standards draw on three types of knowledge (called dimensions): (1) Disciplinary core ideas (2) Science and engineering practices(3) Crosscutting concepts. Below is a sample performance expectation for third grade physical science.

I. How is a warm object cooled?

II. Three heat interaction mechanisms

III. Heat transfers from one object to the other when two objects are at different temperatures.

Which one of the followings does describe best connecting each performance expectation to each NGSS dimension?

a. 1) III (2) I (3) II

b. (1) III (2) II (3) I

c. (1) II (2) I (3) III

d. (1) I (2) II (3) III