The following products are available in Yiddish:
Prefixes/Suffixes Workbooks - Yiddish
Rabbi Winder's workbooks for the prefixes/suffixes. Set of 5 workbooks, Aleph - Hey.
Prefixes/Suffixes Sorting-Cards - Yiddish
Matching cards for the 4 Grammar banners.
Climbing Har Sinai Workbook - Yiddish
Workbook for learning the 303 shorashim sequentially as they appear in the Chumash!
Climbing Har Sinai Vocabulary Cards — Yiddish Version
303 Shorashim cards with Chassidish-friendly pictures, and Yiddish text on back
Climbing Har Sinai Vocabulary Expansion Kit - Yiddish
Provides four matching cards for each vocabulary word: Yiddish, Hebrew, Passuk, and Picture.
Lashon Hatorah Dice - Yiddish
Dice for all 303 Vocabulary words, and the Prefixes/Suffixes
Lashon Hatorah Yedids - Yiddish
Lashon Hatorah Command Cards - Yiddish
Helps the child systematically 'blend' his knowledge of the Shorashim and Prefixes/Suffixes.
Timeline Picture Cards - Yiddish
Available in the following formats: 8.5x11, 4x6, and 4x6 Stick Pictures.