After having checked plenty of bookstores and many websites, I finally found a good book today. Its name is "Everybody Up", published by the Oxford University Press. It's a mixture of a workbook and a book with grammar explanation, vocabulary tasks and excercises to practice the new vocabulary combined with the freshly learned grammar. It's not only writing but also some reading and most importantly listening excercises. That way the kids can not only practice their listening skills but also listen to some well pronounced English. It costs 65 Soles a book (~ 18,50€) which means that so far I can afford to buy over one hundred books! That's great and guarantees that no more than 2 children in one class have to share one book!

I'm more than excited to get everything going now and give the books to the kids and the school at the beginning of next week probably. Thanks to every single one of the donators!