You could have downloaded ScreenCloze 2.0 for Mac from our software library for free. The program lies within Education Tools, more precisely Languages.
From the developer:
ScreenCloze is an educational program that allows you to create and use customized interactive features to help teach students language skills. Examples included give help with contractions, the difference between "to, too, and two," words that sound alike, and more.
You may want to check out more Mac applications, such as Macromedia Extension Manager originale, WordPower Learn Hebrew Vocabulary by InnovativeLanguage.com or SpeechSoundsOnCue, which might be related to ScreenCloze.