Most English words are borrowed, and prefixes and suffixes are added to change the meaning. A popular prefix is 'act', from the Greek root meaning 'to do'. With your kids, look at the words in this worksheet and circle those with the root 'act'.
English borrows lots of words from other languages, and it has many ties to Greek and Latin. For example, 'tri', 'sub' and 'tele' (all from Greek and Latin) mean 'three', 'under' and 'distance' respectively. Help your child understand the meanings of words by having them work through a maze with words from these languages.