Bag the beans
http://www.sciencenetlinks.com/lessons.cfm?DocID=249
A lesson plan for grades 3–4 Mathematics
In this Science NetLinks lesson, students will work with manipulatives (beans) to create and solve math problems, some of which have more than one correct answer. This lesson addresses the common misconception that there is only one correct way to solve any math problem.
North Carolina Curriculum Alignment
Mathematics (2004)
Grade 3
- Goal 1: Number and Operations - The learner will model, identify, and compute with whole numbers through 9,999.
- Objective 1.06: Develop flexibility in solving problems by selecting strategies and using mental computation, estimation, calculators or computers, and paper and pencil.
Grade 4
- Goal 1: Number and Operations - The learner will read, write, model, and compute with non-negative rational numbers.
- Objective 1.05: Develop flexibility in solving problems by selecting strategies and using mental computation, estimation, calculators or computers, and paper and pencil.
- Goal 5: Algebra - The learner will demonstrate an understanding of mathematical relationships.
- Objective 5.03: Verify mathematical relationships using:
- Models, words, and numbers.
- Order of operations and the identity, commutative, associative, and distributive properties.
- Objective 5.03: Verify mathematical relationships using:
