Rabbi Appel is a sought-after speaker and teacher in a variety of topics and settings. Topics include Jewish innovation and entrepreneurship; building user-centered Jewish community; creating communities of belonging and care; the sociology of contemporary North American Jewish life; young adult engagement; relational engagement and relationship-based community-building; combatting antisemitism; Jewish spirituality and contemplative practice; Jewish feminism; and more.
Rabbi Appel has taught in a variety of settings, including:
- Hillel at the University of Toronto
- Beth Sholom Synagogue (Toronto)
- City Shul (Toronto)
- First Narayever Congregation (Toronto)
- Adath Israel (Toronto)
- Beth Tzedec Congregation (Toronto)
- Congregation Dorshei Emet (Montreal)
- Shaare Zion Congregation (Montreal)
- Temple Emanu-El-Beth Sholom (Montreal)
- MIT Hillel (Cambridge, Mass.)
- Amherst College Hillel (Amherst, Mass.)
- The National Havurah Institute (Rindge, New Hampshire)
- Congregation Dorshei Tzedek (Newton, Mass.)
- Temple Israel (Boston, Mass.)
- Panim Summer JAM (Washington, D.C.)