Possible Organization of Unit Standards: This table identifies additional grade-level standards within a given cluster that support the over-arching unit standards from within the same cluster. The table also provides instructional connections to grade-level standards from outside the cluster. Over-Arching Supporting Standards Instructional Connections Standards within the Cluster outside the Cluster 2.OA.C.3 Determine whether a 2.OA.B.2 Fluently add and subtract within of objects (up to 20) has an odd or 20 using mental strategies.2 By end of even number of members, e.g., by Grade 2, know from memory all sums of pairing objects or counting them by two one-digit numbers. 2s; write an equation to express an even number as a sum of two equal 2.NBT.B.5 Fluently add and subtract addends. within 100 using/ strategies based on place value, properties of operations, and/or the relationship between addition and subtraction. 2.OA.C.4 Use addition to find the 2.NBT.B.6 Add up to four two-digit total number of objects arranged in numbers using strategies based on place rectangular arrays with up to 5 rows value and properties of operations. and up to 5 columns; write an equation to express the total as a 2.NBT.B.7 Add and subtract within 1000, sum of equal addends. using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method. Understand that in adding or subtracting three digit numbers, one adds or subtracts hundreds and hundreds, tens and tens,
Possible Organization of Unit Standards: This table identifies additional grade-level standards within a given cluster that support the over-arching unit standards from within the same cluster. The table also provides instructional connections to grade-level standards from outside the cluster. Over-Arching Standards Supporting Standards within the Cluster Instructional Connections outside the Cluster 2.OA.C.3 Determine whether a of objects (up to 20) has an odd or even number of members, e.g., by pairing objects or counting them by 2s; write an equation to express an even number as a sum of two equal addends. 2.OA.B.2 Fluently add and subtract within 20 using mental strategies.2 By end of Grade 2, know from memory all sums of two one-digit numbers. 2.NBT.B.5 Fluently add and subtract within 100 using/ strategies based on place value, properties of operations, and/or the relationship between addition and subtraction. 2.OA.C.4 Use addition to find the total number of objects arranged in rectangular arrays with up to 5 rows and up to 5 columns; write an equation to express the total as a sum of equal addends. 2.NBT.B.6 Add up to four two-digit numbers using strategies based on place value and properties of operations. 2.NBT.B.7 Add and subtract within 1000, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method. Understand that in adding or subtracting three digit numbers, one adds or subtracts hundreds and hundreds, tens and tens,
M_2_OA_C_3_4_U_EqualGroup.docx