Use relationships to determine the number that is 10 more and 10 less than a given number up to 120.
Teachers can use 1.5C to sequence instruction on 10 more / 10 less and monitor progress toward mastery.
TEKS 1.5C bridges prior learning and next steps in Mathematics, keeping 10 more / 10 less coherent across the year.
Start with concrete or familiar examples, connect to prior knowledge, model a clear process, and provide checks for understanding aligned to 1.5C.
Standard 1.5C describes the essential skills and understandings for 10 more / 10 less in Grade 1. It clarifies the learning outcomes and what successful work looks like.
It lays groundwork for the next grade by deepening accuracy and flexibility with 10 more / 10 less, so students can tackle more complex problems later.
Use short exit tickets and tasks where students explain decisions, show multiple representations, or justify answers—directly aligned to 1.5C.
