Oldest Son, just as we had agreed, talked to his teacher. He found out what the web site was and he emailed it to me and to MomC.
MomC had not been in on the conversation, so she responded by asking why Oldest was sending this email. She already had the web site saved in her phone. I responded that this was what I'd asked Oldest to do, and said to Oldest that I was very pleased that he carried out agreement.