To share a dataset to a team, find a dataset you would like to share.
Select the Share icon from the dataset actions bar. Select "+ New share" to be taken to the share creation step.
In the "Share details" section, select "Team" and then use the form to select the team(s) you'd like to share the dataset with. You may also add a message.
Select an access level for the share and provide advanced setting, if applicable.
Click "Share" to complete the share.