Why am I having trouble using Khan Academy on Internet Explorer?
On January 12, 2016, Microsoft stopped providing security updates for Internet Explorer 10 and began transitioning to Microsoft Edge as its default browser. Subsequently, Khan Academy no longer supports Internet Explorer.
This means that in addition to the security risk of continuing to use IE 10 or earlier versions, chances are increased that your user experience of Khan Academy will be less than ideal.
To ensure the best possible user experience with Khan Academy, please use one of our supported browsers -- which includes Microsoft Edge!