Walidj

About me:

I have a bachelors degree in electrical and electronic engineering , and I have been working as a maths , physics , and technology teacher for about 9 years , I helped too many students in solving questions related to these subjects in websites such as yahoo answers, cramster.com , and chegg.com . Most of them were satisfied with my my answers and chose them as best answers . 

I wish to help students here with my knowledge .