September 17, 2012, 4:26 PM — Here's how you can limit applications available to your child by using OS X's built-in parental controls on your Mac.
1. Go to System Preferences.
2. Go to Users & Groups.
3. Click on the lock at the bottom right to being making changes.
4. You can choose to add a new account or edit an existing one if your child already has one.
5. Choose the account you want to edit, then make sure that the Enable Parental Controls box is checked.
6. Click on the Apps tab.
7. Click the Limit Applications checkbox.
8. Use the drop down menu to restrict or allow App Store Apps.
9. Use the Allowed Apps list to choose the apps you want available for your child to use.
Limiting your child's access to an approved list of applications can help protect them and it may also help prevent them from accidentally deleting your data.
For more, see the original article at the link below.
Limit Applications | Hong Kiat