for employees that just take payments.. they dont need the jargon explained. they just need to know how to acept payment

no business does training days to tell their staff that bank notes are based on inflationary debt where its not actually made of paper but some cottonpaper mixture.. they just say here is the cashtray of a Epos system, type in the amount press total, the tray opens and you put the bank note in and give the customer any change owed


simplest way to accept bitcoin and acknowledge payment

have them book mark a bitcoin price calculator site.
so that when selling goods for $xx.. they can calculate how much btc that totals and ask customer to pay

get your employees to bookmark the blockchain.info/btc/[your address]
on their phone so they can watch for new payments,
the site also displays a QR code for that address the employee can show to customers
.
then the employee just watches for the payment to show in on the page

you could also then code up your own app that automates all of this