DS1 is moving schools in September. He will be learning Spanish for the first time. As he is joining in year 9, he's interested in a summer course that will help him cover the basics that his classmates will already have studied in years 7 and 8. I have no Spanish, unfortunately (but do have other European languages, so not averse to helping out if I can). Could anyone recommend an online course, app and/or textbook to work through?