Edit a lesson

In this article, you will learn how to:

Edit a lesson in the Exploration Editor

  1. Select your profile photo in the top right corner of any page.

  2. Select Creator Dashboard from the dropdown menu.

  3. Select the lesson you would like to edit. This will open the Exploration Editor.

Edit a card in the Exploration Overview

  1. Select the card from the panel. The card’s content will appear left of the Exploration Overview.

The Exploration Overview panel showing a map of cards used to navigate and select specific parts of the lesson.

Fig. 1. Use the Exploration Overview to edit cards

  1. Select Edit (pen icon) to edit the content.

  2. Select Save Content.

Close up of the pen icon used to open the text editor for a specific card.

Fig. 2. Edit icon in the card editor

Save lesson drafts

Every time you save an exploration, Oppia keeps a record of that version. You can revisit, edit, and revert to any previous version you’ve saved.

To save a draft of your exploration:

  1. Select Save Draft in the Exploration Editor.

  2. In the dialog box that appears, enter notes about the changes you’ve made.

  3. Select Save. * Select History to view a list of all saved versions.

The Save Draft dialog box where creators can enter commit messages describing their changes.

Fig. 3. Save Draft dialog

Revert to a previously saved version

The History tab showing a chronological list of saved versions and changes made by contributors.

Fig. 4. List of Changes panel includes all saved versions

To return to an earlier version of your exploration:

  1. Select History (the clock icon).

  2. Find the version you want to revert to.

  3. Select … next to that version and select Revert on the dropdown menu.

Note

Reverting to a previous version will discard any unsaved changes in your current draft. If you want the option to return to your current version later, make sure to save your draft before reverting.

Compare selected versions

To compare two versions of the same lesson:

  1. On the History page, scroll to the Compare Revisions panel.

  2. From the Revisions dropdown menu, select the two numbered drafts you would like to compare.

The changes appear in the panel below, along with a legend to help you navigate each change.

The Compare Revisions interface showing a side-by-side comparison of two lesson versions with highlighted differences.

Fig. 5. Compare Revisions panel

Review card errors

If you see a warning icon on a card in the Exploration Overview, there’s an error with the card. This could be an issue with the question, response, or the interaction logic. You must fix the error before publishing the exploration.

To find out what needs to be fixed, hover over the warning icon. A message will appear explaining the issue.

Warning icons appearing on cards in the overview map indicating logic or content errors that need resolution.

Fig. 6. Warning icons on cards

Delete a card

To delete a card from the exploration, select the x icon in the corner of the card in the Exploration Overview panel.

The Exploration Overview panel highlighting the 'x' button on a card node to remove it.

Fig. 7. Delete a card from an exploration

Delete an exploration

To delete an exploration:

  1. Select Creator Dashboard from your profile, and select the Exploration you want to delete.

  2. Select Settings (gear icon) in the Exploration Editor.

  3. Scroll to the Controls panel at the bottom of the page.

  4. Select Delete Exploration.

The Controls panel at the bottom of the Settings page with the red Delete Exploration button.

Fig. 7. Controls panel