I use this worksheet with Realidades 1 Tema 8A. However, it is perfect for any travel unit and it includes the preterite.
It is a worksheet to use in class as a warm-up or later on in the class period. In section A, students check off sentences in the preterite that apply to them personally. Then, they interview a partner (hence practicing the tú form of the preterite). Students can also add a comment or reaction. In the last part, students are given 4 columns of elements and have 5 minutes to create as many logical sentences in the preterite using those elements. Of course, the whole document may be modified to meet your needs.
There is no answer key as many of the questions are open-ended.
Thank You for checking this out, and make sure to visit my store for more Realidades 1 and 2 materials. Have a great year!
-The Spanish Señora