Some Spanish teachers start by teaching every one the alphabet. If you are looking for a good vid for that I recommend this one by PreRaph. The singer's voice isn't the most melodic but this song is extremely catchy and I also like that it also breaks down the vowel sounds as well.
Many young ones are kinestehic learners and let's face it, Spanish class has to have a little fun every now and again right? A good way to teach verbs in a way the students are sure to remember is through a song where the singers or characters do the actions. I am yet to meet a child who did not engage with the vid below. It is a winner.
For the basic greetings and daily phrases I like this video. It shows the words on the screen which is always a good thing.
For other vocabulary I like this video because not only does it show the body parts but the song is also catchy. There is also a karaoke version on Youtube.
This series was featured on HBO Latino several years ago but thanks to the interwebs it has gained new life. Perro (dog) y gato (cat) are two friends who speak in English and Spanish to each other as they go on zany adventures. Each episode teaches a variety of vocabular (verbs, nouns, adjectives) and the words are shown in English and Spanish so that is good.
That's all for now, I will post some more of my favorites in the next few months. Hasta luego!