This is aligned with the following California State Standards:
Communicate understanding of separateness by recognizing objects that are not joined together. Communicate understanding of set by recognizing a group of objects sharing an attribute. Communicate understanding of a subset by recognizing a subset as a set or group of objects within a larger set that share an attribute.
Combine two or more sets, containing objects, to form a new set. Combine two parts (e.g., blocks, toys, or shapes) to form a new whole. Demonstrate addition by combining the objects belonging to two or more sets, and communicate that the total number of objects in the new set is called the sum.
Use models, such as mathematical equations (e.g., 5 + 5 + 5 = 15), sets of manipulatives, or number line diagrams to represent a repeated addition problem.
Solve repeated addition problems by representing the problem using an equation and finding the sum using an addition strategy, such as skip counting.
Demonstrate multiplication by combining multiple sets containing the same number of objects. Communicate understanding that the number of sets times the number of objects in each set equals the total number of objects.