Understanding of Concepts 
• demonstrates a superficial
or inaccurate understanding of adding 2 and 3 digit numbers
and money amounts 
• demonstrates a growing
but still incomplete understanding of adding 2 and 3 digit numbers
and money amounts 
• demonstrates an appropriate
understanding of adding 2 and 3 digit numbers and money amounts 
• demonstrates an indepth
understanding of adding 2 and 3 digit numbers and money amounts 
Application of Procedures

• makes major errors and/or
omissions when adding 2 and 3 digit numbers and money amounts
• provides an inappropriate estimate for the quantity
of supplies needed for games 
• makes several errors
and/or omissions when adding 2 and 3 digit numbers and money
amounts
• provides a partially appropriate estimate, , that
shows some reasoning for the quantity of supplies needed for
games 
• makes only a few minor
errors and/or omissions when adding 2 and 3 digit numbers and
money amounts
• provides and appropriate estimate for the quantity
of supplies needed for games 
• makes almost no errors
when adding 2 and 3 digit numbers and money amounts
• provides a reasonable and logical estimate for the
quantity of supplies needed for games 
Communication 
• provides an incomplete
or inaccurate justification for the estimate of the quantity of
supplies needed for games
• provides an incomplete or inaccurate explanation
of what they should buy for games 
• provides a partial justification
for the estimate of the quantity of supplies needed for games
• provides a partial explanation of what they should
buy for games 
• provides a complete,
clear and logical justification for the estimate of the quantity
of supplies needed for games
• provides a clear and complete explanation of what
they should buy for games 
• provides a thorough,
clear and insightful justification for the estimate of the quantity
of supplies needed for games
• provides a thorough, clear and insightful explanation
of what they should buy for games 
Problem Solving 
• uses a strategy and attempts
to solve the problem of how much supplies to buy but does
not arrive at an answer 
• using a strategy, develops
a partial and/or incorrect solution to solve the problem of how
much supplies to buy 
• uses an appropriate strategy
to solve the problem of how much supplies to buy 
• shows flexibility and
insight by trying one or more strategies to solve the problem
of how much supplies to buy 