Final answer:
When deciding what vocabulary to teach, consider local standards, curriculum requirements, and the key situations for your learners.
Step-by-step explanation:
When deciding what vocabulary to teach, it is important to consider several factors. First, you should find out if there are local standards and a curriculum that specify the relevant vocabulary that you must teach. This will ensure that you cover the necessary vocabulary that aligns with the requirements of your educational institution. Additionally, you should identify the key situations for your learners and include these in your content. This means selecting vocabulary that is relevant to their daily lives and will be useful for them in practical situations.