Elementary Tier 2 Manual

Acadience ® Computation – Second Grade Second Grade Standard: Operations and Algebraic Thinking: 2.OA.2 Fluently add and subtract within 20. a. Add and subtract within 20 using mental strategies b. By the end of Grade 2, know from memory all sums of two one digit numbers. Second Grade Standard: Number and Operations in Base Ten: 2.NBT.5 Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction. Second Grade Standard: Number and Operations in Base Ten: 2.NBT.6 Add up to four two-digit numbers using strategies based on place value and properties of operations.

Guiding Questions for Computation Analysis

Targeted Learning Intention Examples

DRAFT ● Place value in computation ● Properties of operations ● Relationship between addition and subtraction ● Add two one-digit numbers, excluding 0 and 1 Subtract a one-digit number from a one-digit number, excluding 0

● Does the student correctly apply previously taught skills? ● Does the student know the sequence of steps or strategy needed to solve the problem type? ● Is the student inconsistently successful with certain skills?