Multiple choice (image options)

It suits sorting by a visual property: which shapes have a line of symmetry, which animals are insects, which circuits are closed. With more than one right answer, students have to weigh up every picture instead of looking for the single best one.

1. In a worksheet, use the + between two items and choose Question.

2. If the question is not already open, click its pencil, and write the question at the top.

3. Click Add an answer option once for each picture.

4. On each option, click Add Media and choose Upload Image or Choose from Repository, or paste a link to an image. You can also drag an image file onto the option.

5. Tick the box on every correct picture.

6. Click the tick when you are done.

When two or more pictures are ticked, the question switches to several answers by itself, and Allow multiple answers is switched on and locked. To let students pick several pictures when only one is right, tick Allow multiple answers yourself.

Students click pictures to select them, click again to deselect, and send their choice with Submit. They have to select at least one picture.

If the presentation has Show correct answers turned on, each picture they selected turns green or red after they submit. A correct picture they missed is not highlighted.

The answer is checked automatically and counts only when the student selected exactly the correct pictures: all of them and nothing else. There are no partial points.

In the presentation, click Results on the question to see the pictures each student chose. The marks also appear in the grading screen.

• Include at least one picture that looks right but is not, such as a parallelogram among symmetric shapes.

• Keep the number of pictures small: with no partial points, every extra picture makes a fully right answer harder.

• Talk through the missed pictures afterwards, since students do not see them marked.