Kordamine kontrolltööks

http://learningapps.org/1282972

http://learningapps.org/1205638

http://learningapps.org/2099608

http://learningapps.org/2117392

http://web.zone.ee/oppematerjal58/Tsiduvad_sonad.htm

http://web.zone.ee/oppematerjal58/Tsidesonad.htm

https://sites.google.com/site/ellehein/sidesnadsnonmideldised6.htm

https://sites.google.com/site/ellehein/eldis.htm