As a teacher I often search the internet for materials to use with my students.
There are many sites where other teachers share their work.
I decided to put my favourite ones here.
http://www.foreignersinpoland.com/
http://www.eslprintables.com/
http://www.anglomaniacy.pl/
http://www.newtongue.com/lyrics-worksheets/
http://www.eslgamesplus.com/board-games-cards-games/
http://www.eslgamesplus.com/pirate-games/
... to be continued
http://www.eslgamesplus.com/crocodile-games/
http://www.eslgamesplus.com/classroom-games/
http://www.purposegames.com/game/jungle-animals-quiz
http://www.yummy.pl/
https://www.teacherspayteachers.com/
https://en.islcollective.com/
http://busyteacher.org/
https://freeenglishlessonplans.com/category/video-classes/ted-talk-lesson-plans/
http://elt-connect.com/a1-c1-lessons/b2-lessons/
http://tedxesl.com/
http://www.macmillanyounglearners.com/
http://www.pearsonelt.com/
https://www.thinglink.com/
http://www.cristinacabal.com/
http://learnenglishteens.britishcouncil.org/
http://learnenglishkids.britishcouncil.org/en/
http://learnenglish.britishcouncil.org/en/?utm_source=le&utm_medium=header-tab&utm_campaign=learnenglish
http://world-of-ngl.nowaera.pl/kurs-world-explorer-klasy-4-6?id=38
http://dreamreader.net/
https://www.englishclub.com/
http://www.visualdictionaryonline.com/index.php
http://www.tolearnenglish.com/
http://www.notimeforflashcards.com/
http://www.prekinders.com/
http://www.activityvillage.co.uk/
http://www.fernsmithsclassroomideas.com/
speaking game : http://www.coolenglish.net/#!speak-up/co44
http://www.mightybook.com/
http://www.itsybitsyfun.com/states-and-capitals-worksheets.html#_a5y_p=2549131
My favourite Polish sites:
http://www.joinlingling.com/pl/
http://www.annapoplawska.pl/blog
http://www.mambiatka.pl/
http://neuroteaching.blogspot.de/
http://angdlakazdego.blogspot.com/2016/02/paraphrasing-matura.html
http://www.engly.pl/
https://letsreadinenglish.wordpress.com/
http://www.fullofideas.pl/
http://englishbyann.blogspot.com.br/p/useful-l.html
... to be continued