Because the teachers have received Newslink materials and regular e-mail contacts, you know they are aware that they will be contacted for feedback. As the school year draws to an end, you decide it is prudent to remind them that they will be receiving a questionnaire. You send them a notification letter by both mail and e-mail one week before sending them the questionnaire (you include a mailing because you are not sure all teachers are checking their school e-mail regularly). In this letter, you thank them for their participation and describe the purpose and importance of the questionnaire. You also emphasize that they need to be alert to their e-mail in about a week because they will be receiving the questionnaire electronically.