Figure analysis

When the students are ready, say:

Now turn to page 40 and look at the pictures while I read the directions.

Pause and check all the students are on the right page, and then read:

Each of the questions in this test is about folding paper and punching holes in it. You must decide how the paper would look when unfolded. Look at the example below.

Example

The top row shows how the paper is folded and punched through. The first square shows the paper at the start. The white line shows the crease and the arrow shows the direction of the fold.

The paper is folded down, so where it had been on the page is marked by dashed lines.

A hole has been punched after the fold was made. This is shown by the white circle. You have to decide how it will look if it is unfolded.

Because the paper was folded over, the hole would have gone through two layers. When unfolded, there will be two holes.

Which of the answer choices shows how the paper would look?

The correct answer is B. There will be one hole in the top half and one in the bottom half, both in the left-hand side of the paper. This is how you would show the answer. [Pause and indicate the example in the Student Booklet.]

Practice 1

Practice 2

Pause while the students choose their answers. Walk around the room, checking to make sure they are marking their answers correctly. Clear up any difficulties. Then continue as follows:

The answer to practice question 1 is K, because the hole is punched through all four layers of paper so, as the paper is unfolded, the holes will each be close to the centre of the paper, one in each quarter.

The answer to practice question 2 is P, because the hole is punched through both layers of paper so, as the paper is unfolded, the holes will be a mirror image of each other, with the crease being the mirror line.

Are there any questions?