Login to Top Hat through Sakai.
Access your Top Hat course in your Sakai course site with these directions.
Access the Gradebook in Top Hat.
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After logging into Top Hat, select the Gradebook tab at the top.
Sync with LMS
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Select the Sync with LMS icon in the top right corner above the Gradebook.
Select items to sync.
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Select which items to sync with the Sakai Gradebook by checking the boxes and/or using the arrows to select items in a folder. When ready, select Sync with LMS.