摘要:Abstract When planning a CLIL lesson, the teachers have to plan the input that they want to teach their students, that is to say, the amount of knowledge that the students are going to learn and how this information will be presented and introduced in the CLIL class. However, one of the most concerns of CLIL teachers when looking for materials is that they can’t find appropriate materials for their lessons. Unfortunately, there is a dearth of commercially produced CLIL course books and the content knowledge is usually inferior to that of the L1 subject. For these reasons, teachers often have to spend their time preparing their own materials. Therefore, the aim of this paper is to introduce CLIL teachers the creation of materials in an easily way. For doing this, we are going to develop a lesson planning from the second course of Natural Science entitled “Our bones”. Just for the students to learn the vocabulary related to this topic, we have developed different interactive activities, which can also be printed, created with free online programmes, and resources.