Presentations often start with a challenge—sorting a mixed group of numbers—to lead students to discover the definition of "single-digit" themselves.
For more advanced 1st-grade lessons, presentations introduce the algorithm for adding single-digit numbers, such as "bridging ten" (e.g., Pedagogical Significance
Using "number houses" or geometric shapes to represent quantity, which helps develop "number sense"—the intuitive understanding of how numbers relate.
Breaking down numbers into their component parts (e.g., 5 is 2 and 3) to prepare for addition and subtraction. Structural Elements of a PNSH Presentation