Making your Bb course accessible
Principles of making content accessible
- Provide text alternatives for any non-text content such as images, audios, videos, tables and charts so that a screen reader can read it.
- Avoid solely rely on color, shape, size, or visual location (e.g., "Click here to continue") to convey meaning.
- Use a limited number of colors.
- Make sure to have sufficient contrast between the text color and background color so that it is easy to read. You can use this Contrast Checker to check if the two colors you use provide appropriate contrast ratio.
- Use simple and familiar fonts such as arial, helvetica, verdana.
- Use a limited number of typefaces, fonts, and font variations.
- For long text content, put it in Word or PDF with which you can ensure accessibility using the accessibility checker in respective applications. Then post the Word or PDF document in the Bb course site.
Providing text alternatives for images posted in Bb
In Bb, if you want to post an image or embed an image in an item, go to a content page and click "Build Content" and then select Item or Image.
- With Item you can add text such as what you want students to do with the image.
- On the "Create Item" page, go to the text box (e.g. Bb content editor).
- On the toolbar, type in your instruction. Then click the "Insert/Edit Image" icon.
- On the pop-up window, click "Browser my computer" to find your image and open it. Then fill in a description in the "Image Description" field or a title in the Title field. You just need to fill in one of them. Click Submit to insert the image.
- Click Submit to post this item.
- With Image, you can post the image without text or post instructions in another appropriate place. Type in a Name. Click "Browse My Computer" to locate your image file and open it.
- Type the name of the image in the "Alt Text" field.
- If the image is more complex and need longer description to convey the ideas expressed by the image, type the description in the "Long Description" box.
Complete the rest of the settings. Click Submit to post the image.