FUTURE WITH " GOING TO"

http://www.slideshare.net/rezaze/going-to-ppt?related=1

http://www.slideshare.net/carlosmatellano/to-be-going-to-7767565

Here you have some activities to practice:

https://learnenglishkids.britishcouncil.org/en/grammar-games/going-plans

http://www.englishexercises.org/makeagame/viewgame.asp?id=5640

PAST SIMPLE

Here you have some information about regular and irregular verbs in the past:

http://www.slideshare.net/pilargrossso/past-simp-regular-verbs-rules-and-exercise

http://www.slideshare.net/jaimeribavelarde/regular-verbs-some-rules-16789430

http://www.slideshare.net/Aimara21/irregular-verbs-32640627

And some activities to practice:

http://www.eslgamesplus.com/past-simple-irregular-verbs-esl-grammar-interactive-activity-online/

https://learnenglishkids.britishcouncil.org/en/grammar-games/past-simple-endings

https://sites.google.com/site/easygrammar4kids/simple-past/simple-past