In this 4th-grade math lesson, students will explore the concept of area and learn how to calculate it for rectangles and squares. The class begins with an engaging discussion about the meaning of area, followed by a demonstration of how to apply the formulas for calculating area. Students will have the opportunity to create their own shapes on grid paper, measure their dimensions, and perform area calculations. Working in small groups, they will apply their knowledge to a real-world scenario involving garden design, sharing their findings with the class. The lesson concludes with a recap of the key concepts, emphasizing the practical applications of area in everyday life. Assessment will involve observing student participation and reviewing their worksheets for accuracy in calculations. An extension activity is available for faster learners, encouraging deeper exploration of area concepts.