I think educational techniques are the easiest to buy for children to learn languages. When sending a child (enough big enough) to Spain to spend the summer, he will speak Spanish. By contrast, if Isaac Newton sent him to Cambridge to select where to set the calculus, he will not soak in the environment and acquire a calculus. So I modified Murray's proposal and completely prohibited the score of the foreign language test.
One of the most effective ways to learn Spanish is to travel to Spanish speaking countries and take intensive Spanish courses. It is very useful to soak yourself in the environment and learn from teachers and real life. In addition, learning in other countries offers plenty of opportunities for adventure and discovery; this is you will soon be an unforgettable experience. If you are one of these people, your parents and grandparents may still be talking about Spanish around the house. By learning Spanish you can communicate with them in various ways and add a whole new dimension to your family life. It also enables you to be proud of your ancestors
German may not be accustomed to English as much as Spanish but still it is one of the easiest languages to master. Like Spanish, it is also a speech language that makes pronunciation easier to understand. Spelling rules are somewhat structured, unlike simple, continuous English-speaking English. German is only one of the current forms. All of these makes it easier to learn German at the beginning. In addition to your family, you can draw German words from popular songs and movies. In terms of music, you may have heard of Nane's popular '99 Luftballons' song, but if you are a rock fan, Rammstein's songs are an important part of the playlist. As for movies, there are quite a few 100% German movies in the top movies of IMDB. "Das Leben der Anderen" and "Der Untergang" unconsciously bring you closer to German acquisition.