Number sense refers to a person's intuitive understanding of numbers and their relationships. It involves recognizing and understanding the quantity, magnitude, and relative value of numbers, as well as the ability to manipulate and use numbers in a variety of contexts.
Place value refers to the value of a digit based on its position within a number. In the base-10 number system, each digit has a place value that is determined by its position relative to the decimal point. For example, in the number 3,456, the digit "5" has a place value of 50, while the digit "4" has a place value of 4,000. Understanding place value is essential for performing operations with large numbers and for understanding concepts such as decimals and fractions.
Tier 1
Core, universal instructional practices.