video:
https://www.youtube.com/watch?v=By2hmo323xM
procvičování:
www.topmarks.co.uk/learning-to-count/underwater-counting
agendaweb.org/exercises/vocabulary/numbers/numbers-11-20-match
www.topmarks.co.uk/learning-to-count/helicopter-rescue
apps.mathlearningcenter.org/number-pieces/
agendaweb.org/exercises/vocabulary/numbers/numbers-20-game
wordwall.net/resource/76404/maths/matching-numbers-and-words-to-20
wordwall.net/resource/9961508/maths/even-and-odd-numbers-to-20
wordwall.net/resource/1879596/numbers-1-20
www.gamestolearnenglish.com/hangman/
www.gamestolearnenglish.com/numbers/