https://r2.erweima.ai/mathbot/image/1727185065825lh5andlz.pdf

The document you uploaded contains two mathematical problem situations aimed at secondary school students. Here's a brief overview of each:

1. **Situation 1: "Distribuimos terrenos"**:
   - Jorge has a plot of land with various crops and a free space.
   - 60% of the land is used for crops, and he plans to double the alfalfa area.
   - The task is to determine what fraction of the free space will be used to increase the alfalfa area and how much free space will remain afterward.
   - The problem encourages using fractions and operations with rational numbers, such as multiplying and adding fractions.

2. **Situation 2: "Representamos un estante de pared"**:
   - Felipe’s father wants to build a wall shelf, and Felipe needs to calculate the amount of wood and the space the shelf will occupy.
   - This requires understanding the geometry of the shelf, including calculating areas and volumes of rectangles and prisms.
   - The task focuses on the relationship between real-world objects and their measurable properties, particularly in 3D.

Would you like help solving either of these problems in more detail?

Here are five follow-up questions that might extend your learning:
1. How do you calculate the fraction of land used after expanding the alfalfa area?
2. What is the formula for calculating the area of any rectangular plot?
3. How do you homogenize fractions when adding or subtracting them?
4. What is the volume formula for a rectangular prism?
5. How do 3D shapes like the shelf compare to 2D shapes in terms of calculation?

**Tip**: When dealing with fractions, it's often helpful to convert them into decimals for easier manipulation if you're more comfortable with that method!

The document contains two mathematical problem situations aimed at secondary school students: 1. Determining the fraction of free space used to expand alfalfa crops on Jorge's land. 2. Calculating the amount of wood and space for a wall shelf Felipe's father wants to build.

Learn how to solve two math problems: determining the fraction of free space used for alfalfa expansion on Jorge's land, and calculating wood requirements and space for Felipe's father's wall shelf. This lesson focuses on fractions, geometry, and operations with rational numbers, ideal for students in Grades 7-9.

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