Which math textbooks are most prevalent in high schools?

I'm curious to know about the most widely used textbooks for high school math. I feel like knowing this could give me a better understanding of my peers' learning experiences across different high schools. Any thoughts or insights?

While there can be some variation in the textbooks used between different regions and school districts, some of the most commonly used textbook series for high school mathematics include:

1. Pearson Prentice Hall: They offer a range of mathematics books, from algebra to calculus. The "Algebra 1", "Geometry", and "Algebra 2" are notable examples that are often used.

2. Glencoe/McGraw-Hill: This series also provides comprehensive content, covering middle school through high school level math courses. Textbooks like "Algebra 1", "Geometry", "Algebra 2", "Precalculus", and "Calculus" are often widely adopted.

3. Holt McDougal: Their "Holt McDougal Larson" series for "Algebra 1", "Geometry", and "Algebra 2" are quite common as well.

4. CPM (College Preparatory Mathematics): Known for its problem-based approach, CPM offers a three-year core high school mathematics curriculum that generally includes "Algebra 1, Geometry, and Algebra 2", or "Integrated I, II, and III".

5. Big Ideas Learning: They offer a comprehensive math curriculum for middle school and high school. Their series includes "Big Ideas Math Algebra 1", "Geometry", "Algebra 2", and others.

Please note that curriculum and textbook choices can be influenced by state and school district standards as well as teacher preference. Some schools and classes may even opt for digital resources or online programs instead of traditional textbooks.