Present NCERT text-books on Mathematics are written keeping in mind the recommendations of

Options

A. Syllabus prescribed by CBSE in 2006
B. Syllabus prescribed by State Board in 2006
C. National Curriculum Framework, 2005
D. National Policy on Education, 1986

Answer

To solve the question regarding the recommendations on which the present NCERT textbooks on Mathematics are based, we will analyze the provided options step by step.

### Step-by-Step Solution:

1. **Understand the Question**: The question asks which recommendations the current NCERT textbooks on Mathematics are based on.

2. **Review the Options**:
- **Option A**: Syllabus prescribed by CBC in 2006
- **Option B**: Syllabus prescribed by State Board in 2006
- **Option C**: National Curriculum Framework in 2005
- **Option D**: National Policy on Education in 1986

3. **Analyze Each Option**:
- **Option A**: The Central Board of Secondary Education (CBSE) syllabus is relevant, but it is not the foundational framework for the NCERT textbooks.
- **Option B**: State Board syllabi vary by state and do not form the basis for NCERT textbooks.
- **Option C**: The National Curriculum Framework (NCF) of 2005 is a comprehensive framework that guides the development of NCERT textbooks, including Mathematics.
- **Option D**: The National Policy on Education from 1986 laid the groundwork for educational reforms but is not directly linked to the current Mathematics textbooks.

4. **Identify the Correct Answer**: Based on the analysis, the correct answer is **Option C: National Curriculum Framework in 2005**. This framework outlines the educational objectives and guidelines for curriculum development in India.

### Final Answer:
The present NCERT textbooks on Mathematics are written keeping in mind the recommendations of the **National Curriculum Framework in 2005**.

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