**1**To establish strategies to determine the areas of polygons and curved surfaces.**2**To interpret the measure of the area of polygons derived from objects in their environment**2.1**Recognize the use of the area of a figure to separate plots of land, identify the cost of building materials, and establish locations, among others.**2.2**Identify the area of polygons.**2.3**Finding the area of irregular polygons by breaking down the figures into triangles and rectangles.

**3**To identify the need to calculate the areas of curved surfaces in objects of their environment.**3.1**Identify objects with curved surfaces in their environment**3.2**Create strategies that estimate the area of curved surfaces using increasingly smaller grids.**3.3**Interpret procedures used throughout history to find the area of a circle by rounding up and down.**3.4**Recognize the use of the area of a figure to separate plots of land, identify the cost of building materials, and establish locations, among others.**3.5**Understand the possibility of breaking down a curved surface into polygonal surfaces to approximate the surface area.

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