Tutoring English, words surface that a student might recall, but never looked up. The tutor mentions the word propound. propound (verb): propose for contemplation. Source: Barber, Katherine (Editor-in-chief). Oxford Canadian Dictionary of Current English. Don Mills: Oxford University Press, 2005.

Tutoring English, some words appear less often, but are common in certain contexts. The tutor mentions the word didactic. didactic (adj): meant to convey moral instruction. Source: Mish, Frederick C. The Merriam-Webster Dictionary. Springfield: Merriam-Webster, 2004.

Self-tutoring about archaeology: the tutor mentions the measure bath and offers its equivalent in litres. Numerous places in the Bible, the unit bath is mentioned – for instance at Ezra 7.22. Apparently, 1 bath=22 litres. Source: www.convert-me.com www.keyway.ca www.biblicaltraining.org