MA19.K.9
Solve addition and subtraction word problems, and add and subtract within 10, by using concrete objects or drawings to represent the problem.
Solve addition and subtraction word problems, and add and subtract within 10, by using concrete objects or drawings to represent the problem.
UP:MA19.K.9
Vocabulary
- Concrete objects
- Drawings
Knowledge
Students know:
- Characteristics of addition and subtraction contexts such as putting together, adding to, taking apart, and taking from.
Skills
Students are able to:
- represent quantities and operations physically, pictorially, or symbolically.
- Strategically use a variety of representations to solve addition and subtraction word problems.
- Use informal and mathematical language to communicate addition and subtraction representations.
- Accurately compute sums and differences.
Understanding
Students understand that:
- both putting together and adding to can be viewed as addition.
- both taking apart and taking from can be viewed as subtraction.
- Mathematical problems can be solved using a variety of strategies and representations.
