The lesson plan aims to teach students the difference between the Spanish words "hay", "ahí", and "¡ay!" by having them learn how each word is used in a sentence. The teacher will use pictures and a PowerPoint presentation to guide students in practicing repeating and reading sample sentences aloud. Students will then independently write their own sentences using each vocabulary word correctly and the teacher will check their understanding through informal assessments and a closing activity where students write 15 sentences total using the three words.