If you ever get a link to something called Slingshot… Here is the scoop. It is a plug-in via the GSD Portal/Webnetworks “They” say the portal likes the browser called Internet Explorer. But Canvas does not like “IE” and wants you to use “Firefox”. Sling shot is a little application from the portal that slingshoots you into the correct browser. Go to Subnet-Calculator.org to calculate your subnet first. Here are some instructions form the DO.
My suggestion is to just avoid the portal if you can and don’t want to deal with “Slingshot”. You can log directly in to Canvas and Grade Book using the links under the Links tab on the school website.