Begin class by asking students what their favorite day of the week and month is, encouraging them to use the prepositions "in" and "on" in their responses. Share interesting facts or anecdotes related to specific days of the week or months to set context and engage students.

Distribute a worksheet to assess students' prior knowledge of prepositions (in, on) used with days of the week and months. The test should include fill-in-the-blank related to the correct preposition usage. Collect the completed tests for evaluation.

Review the correct use of prepositions (en, sobre) with days of the week and months. Provide examples and explanations to clarify difficult points detected in test 1. Highlight exceptions or special cases in the use of prepositions.

Administer a second test to assess students' understanding of prepositions (in, on) with days of the week and months. Include a mix of new questions and similar questions from Test 1 to compare the students' progress. Collect the completed tests for evaluation. Example of a question that could be included in Test 2: Question: complete the following sentence using the correct preposition: "We are going to have an important meeting __________ Thursday afternoon." Answer choices: a) on b) on c) during d) at In this example, students should select the "on" option as the correct answer, since the preposition "the" is used before the day of the week (Thursday) to indicate a specific day.

Recap the key points covered in the class regarding prepositions (in, on) with days of the week and months. Encourage students to practice using the prepositions in their daily conversations or written assignments. Answer any questions or address any concerns raised by the students.