iBooks 
Add review questions
With the Review widget, you can add a set of questions to let readers review what they’ve learned. You can use three types of questions in each review:
Multiple Choice: Students answer a question with up to six possible answers.
Drag Label to Target: Students drag up to six text labels to specific locations in a graphic.
Drag Thumbnail to Target: Students drag up to six images to specific locations in a graphic.
Here’s an example of a multiple-choice review question:
Create or modify a review
Choose Review from the Widgets pop-up menu in the toolbar.
To enter the first question, type over the placeholder text.
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In the Interaction pane of the Widget inspector, do any of the following:
Add a new question: Choose a type of question from the Add pop-up menu
below the Questions list.
Delete a question: Select the question in the Questions list and click the Remove button
.
Reorder questions: Drag them in the Questions list.
Change the number of possible answers: Select a question and choose an option from the “# of Answers” pop-up menu next to the question.
Indicate the correct answer: Select it or drag the label or image to the target. To have more than one correct answer, hold down the Command key while you select the answers.
Navigate among questions: Select a question in the Questions list.
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Add an image (for “drag to target” style questions): Drag an image file to the widget.
Important: Images can’t be larger than 25 megapixels (5000 x 5000 pixels) or 50 MB.
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Set the review as a thumbnail image that maximizes when readers tap or click it: Select the “Uses thumbnail on page” checkbox.
Continue to edit the widget: Select the thumbnail image, click Edit Review, make your changes, and click Done.
Change the thumbnail image: Drag a new image to the thumbnail.
Your readers can check their answers immediately by tapping or clicking Check Answer.