19063424_eaching_Elementary_Mathematics__on_is_Found_in_U_S__Curriculum
[Phase] Quantifying [Description] Using part-part-whole relations for numerical quantities. Counting Count on, count back Skip count (in groups) Know ordinal numbers Number Relationships · Develop a sense of quantity and reasonableness · Understand part-part-whole relationships · Combine by using relationships, using doubles and near doubles, and just knowing · Use benchmarks of 5 and 10 · Know how many to add or subtract (to change a number) · Relate one number to another · Have conservation of number · Write number sentences (equations) · Understand greater than, less than, and equal to · Understand that when dealing all groups are the same · Use concrete materials to model tens and ones and to add tens
Kindergarten and first grade
Early Numbers | Strategies for Teaching Elementary Mathematics
Typical Grade in which Instruction is Found in U.S. Curriculum