Content:[br]Related Mathematical Concepts:[br]Number line: Understanding the relationship between numbers visually.[br]Estimation and error analysis: Strategies for approaching the line.[br]Use in Daily Life:[br]For example: ‘Used to estimate temperature, change the price of a product, or measure the distance to a destination.’[br]Curriculum Links:[br]‘Number Line,’ “Absolute Value,” and “Problem Solving” outcomes in the 6th and 7th grade mathematics curriculum in Turkey.