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×. science×. counting & cardinality×. executive function×. logic and reasoning×. relationships and interactions×. tools, tech, engineering×. level 2: 9 - 18 months×. approaches to learning (8). math (2). social-emotional learning (4). life science (1). scientific concepts (1). physical 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 3: 19 - 36 months (11). level 4: 3 - 4 years (12). level 5: 4 - 5 years (11). learning throughout the day (2). search show (2) cancel clear filters×. math×. science×. counting & cardinality×. executive function×. logic and reasoning×. relationships and interactions×. tools, tech, engineering×. 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.