Drawing as a Tool for Assessment for Learning

I have finished teaching the P4 classes on the topic of heat. I gave pupils a task and they have to use drawing to explain the concepts of how heat transfer from hotter to colder places.

After looking at their drawing, I realised some of them are still not able to grasp the concepts.

Task 1 : Why does a glass turn cold when cold water is poured into the glass? Draw to show how heat transfers.



I extracted the work of 3 pupils. Which one explains correctly how heat transfers?

(1)



(2)



(3)

I dont understand why picture (3) is upside down. I have been trying to rectify but could not.

Pupil (1) is confused that heat transfers from surrounding air to the glass in picture (1). Pupil (2)  has this misconception that heat flows in circular motion in the cold water. Pupil (3) got it right that heat flows from the glass to the cold water to make the glass cold.

I used showme to explain the correct concept. The link is  http://www.showme.com/sh/?h=KGNaw2C


Task 2: Why does a glass of hot milo turn cold after a while?

Will update another time. The pictures are badly uploaded.

(1)

(2)

(3)

(4)

Picture (1) is incorrect as it shows the milo gains heat instead of losing heat. Picture (2) is also incorrect. It shows the coldness transfers. Picture (3) can be improved if the arrows can be drawn from the water to show that the water is losing heat. Picture (4) can be improved too if the pupil can draw that heat can be lost from the sides  besides from the exposed surface area of the milo.

Solution from  http://www.showme.com/sh/?h=VRbdhvE