learning the concept of one. your child will learn that the word "one" is talking about "how many" items there are (one!). math. level 2: 9 - 18 months. 15m. number names. your child will learn words we use to describe the number of things. math. level 2: 9 - 18 months. 10m. filtered (2) filters clear filters ×. math ×. counting cardinality ×. emergent reading ×. executive function ×. physical science ×. level 2: 9 - 18 months ×. approaches to learning(7). language literacy(8). math(2). science(5). data measurement(1). geometry, spatial awareness shapes(3). counting cardinality(2). 10m(1). 15m(1). level 1: 0 - 9 months(1). level 2: 9 - 18 months(2). level 4: 3 - 4 years(11). level 3: 19 - 36 months(10). level 5: 4 - 5 years(10). learning throughout the day(2). searchsearch× show (2) cancel clear filters ×. math ×. counting cardinality ×. emergent reading ×. executive function ×. physical science ×. level 2: 9 - 18 months ×. learning the concept of one. your child will learn that the word "one" is talking about "how many" items there are (one!). math. level 2: 9 - 18 months. 15m. number names. your child will learn words we use to describe the number of things. math. level 2: 9 - 18 months. 10m.