A RIGHT START

Grammar point 1 : Difference between the Simple Present and the Present Continuous:
Explanations in English,
http://www.englishpage.com/verbpage/simplepresent.html ( For the Simple Present)

http://www.englishpage.com/verbpage/presentcontinuous.html ( For the Present Continuous)

Explanations in Spanish,

http://www.mansioningles.com/gram39.htm

Exercises to revise the grammar point:

1. 
   
   http://www.englishpage.com/verbpage/verbs1.htm ( very easy)
2. 
   
   http://perso.wanadoo.es/autoenglish/gr.prescon.i.htm ( quite easy)
3. 
   
   http://web2.uvcs.uvic.ca/elc/studyzone/330/grammar/simcon2.htm ( still easy)
4. 
   
   http://www.englishpage.com/verbpage/verbs2.htm ( not so easy)
5. 
   
   http://www.isabelperez.com/happy/tenses/exercises/present_6.htm ( a bit difficult)

Now practise your listening skills:

http://www.esl-lab.com/elem/elemrd1.htm#pre   A day at school ( easy. Sometimes you won't understand  Joshua, as he speaks in Japanese).

Important, once you have at least 5 exercises, send them to jmartin@badalones.com to get extra bonus.