MATH DOMAIN 2.NBT.6/NUMBERS AND OPERATIONS IN BASE TEN Grade 2 Math Standard Mathematic Practices Math Cluster Use place value 2.NBT.6 Add up to four Make sense of problems and understanding two-digit numbers using persevere in solving them. and properties of strategies based on place Reason abstractly and operations to add value and properties of quantitatively. and subtract. operations. Construct viable arguments and critique the reasoning of others. Model with mathematics. Use appropriate tools strategically. Attend to precision. Look for and make use of structure. Look for and express regularity in repeated reasoning. Reporting Standard Trimester 1 Trimester 2 Trimester 3 Base Ten: Add any two- and three-digit Add four Introduced (tested) numbers. numbers (not tested) without Base Ten: Subtract any two- and composing Add up to numbers. four (not tested) numbers without composing Clarify Standard Mental strategies AND Standard algorithm should be learned. Adding numbers together is new numbers. composing Subtracting and taking numbers apart is decomposing numbers. The terms and replace and in “composing” “decomposing” “regrouping” “borrowing” the CCSS Mathematics. Task Analysis
MATH DOMAIN 2.NBT.6/NUMBERS AND OPERATIONS IN BASE TEN Grade 2 Math Cluster Math Standard Mathematic Practices Use place value understanding and properties of operations to add and subtract. 2.NBT.6 Add up to four two-digit numbers using strategies based on place value and properties of operations. Make sense of problems and persevere in solving them. Reason abstractly and quantitatively. Construct viable arguments and critique the reasoning of others. Model with mathematics. Use appropriate tools strategically. Attend to precision. Look for and make use of structure. Look for and express regularity in repeated reasoning. Reporting Standard Trimester 1 Trimester 2 Trimester 3 Base Ten: Add any two- and three-digit numbers. Base Ten: Subtract any two- and numbers. Add four numbers without composing (not tested) Introduced (not tested) Add up to four numbers without composing (tested) Clarify Standard Mental strategies AND Standard algorithm should be learned. Adding numbers together is composing new numbers. Subtracting and taking numbers apart is decomposing numbers. The terms “composing” and “decomposing” replace “regrouping” and “borrowing” in the CCSS Mathematics. Task Analysis