snack subtraction. your child will learn an introduction to subtraction. math. level 3: 19 - 36 months. 15m. toy patterns. your child will learn introduction to patterns. math. level 3: 19 - 36 months. 10m. filtered (8) filters clear filters ×. math ×. operations and algebraic thinking ×. tools, tech, engineering ×. level 3: 19 - 36 months ×. level 4: 3 - 4 years ×. math(8). science(2). data measurement(1). operations and algebraic thinking(8). geometry, spatial awareness shapes(10). counting cardinality(21). 10m(3). 15m(5). level 4: 3 - 4 years(3). level 3: 19 - 36 months(5). level 5: 4 - 5 years(5). learning in the community(2). learning throughout the day(6). searchsearch× show (8) cancel clear filters ×. math ×. operations and algebraic thinking ×. tools, tech, engineering ×. level 3: 19 - 36 months ×. level 4: 3 - 4 years ×. snack subtraction. your child will learn an introduction to subtraction. math. level 3: 19 - 36 months. 15m. toy patterns. your child will learn introduction to patterns. math. level 3: 19 - 36 months. 10m.