Mathematical Processes 
Work meets standard of excellence 
Work meets standard of proficiency 
Work meets acceptable standard 
Work does not yet meet acceptable standard 
Mental Mathematics and Estimation 
• I demonstrate computational fluency that is efficient and flexible
• I choose an efficient and effective strategy to estimate a solution 
• I demonstrate computational fluency that is workable and understood
• I choose a workable and reasonable strategy to estimate a solution 
• I demonstrate computational fluency that is routine and familiar
• I choose a familiar strategy to estimate a solution, even though it might not be the most appropriate 
• I have difficulty demonstrating computational fluency and must work through procedures
• I choose a random or inappropriate strategy to estimate a solution 
Communication 
• I use effective and specific mathematical language, symbols, and conventions to enhance communication about multiplying and estimating large numbers 
• I use appropriate and correct mathematical language, symbols, and conventions to support communication about multiplying and estimating large numbers 
• I use mathematical language, symbols, and conventions to partially support communication about multiplying and estimating large numbers 
• I use mathematical and nonmathematical language and conventions
incorrectly and/or inconsistently, which interferes with communication about multiplying and estimating large numbers 
Problem Solving 
• I develop a thorough plan for solving the problem
• I choose efficient and
effective strategies when applying multiplication and estimation skills to solve the problem; may demonstrate creativity and innovation in his/her approach 
• I develop a workable plan for solving the problem
• I choose appropriate and workable strategies when applying multiplication and estimation skills to solve the problem

• I develop a basic plan for solving the problem
• I choose simplistic and/or routine strategies when applying multiplication and estimation skills to solve the problem

• I develop a minimal and/or flawed plan for solving the problem
• I choose inappropriate and/or unworkable strategies when applying multiplication and estimation skills to solve the problem

Connections 
• I make insightful connections between realworld contexts and estimating 
• I make meaningful connections between realworld contexts and estimating 
• I make simple connections between realworld contexts and estimating 
• I make minimal or weak connections between realworld contexts and estimating 