Quack! is a 15-minute outrageously silly, repetitious reinforcement video. Each one has been made for your high school classroom. After you explain the concept, just pop in a Quack! to reinforce it. Review and reinforce the concept of these tricky stem-changers with help from Quack! span style=”color:#FF0000;”Download the free video quiz located in “Additional Info.”/spanCopyright 2006. 15 minutes. Spanish. High school level. Video Download: MP4.Video DVD: DVD.br /The activity packet features activities created in the crazy Quack! style. Activities include fill-in-the-blanks, multiple mistakes, and brain regurgitation. The packet works great in conjunction with the video, but can be used alone. Of course, the packet comes with the Quack! EXTREMELY SILLY warning ……. er, guarantee. Copyright 2006. Spanish. High school level. Reproducible.Activity Packet Download: PDF. Adobe Reader required to view PDF.