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Transcript
Math Review Categories - Second Grade
Previous grade levels’ categories should be mastered before progressing to 2nd grade level
categories. (start with page 1 or, if needed, kindergarten categories)
1st GR. CATEGORIES
Sequence Within Categories
Compose and Decompose numbers 20 and
smaller
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Using anchors of 5
Using anchors of 10 and further ones (1.NBT.2)
Model numbers through 20
Addition within 10 for fluency: one strategy
at a time
Subtraction within 10 for fluency
Counting Sequences
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Number Representation
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Fact strategies (i.e. add 1, add 2, doubles, make 10) (1.OA.6)
Unknown addends (1.OA.8)
Fact strategies (1.OA.6)
Unknown minuend or subtrahend (1.OA.8)
Forward and backward from any given number (1-100) (1.OA.5,
1.NBT.1)
Number patterns with 2, 5, 10 forward and backward (1.NBT.5)
Represent a number of objects with a written numeral 0-100 (1.NBT.1)
Value/quantity
Addition and Subtraction: practice of varied
strategies (doubles, make 10, build through
10, doubles plus 1, doubles plus 2 strategy,
etc.), one strategy at a time
2nd gr. Sequence of Categories
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Digit value with 2 digit numbers
True/False equations (1.OA.7)
Comparison of 2 digit numbers (greater, less, equal) (1.NBT.3)
Addition Facts to 20 – strategy focused (1.OA.6)
Missing Addends (1.OA.4)
Concept of Commutative property-not term (1.OA.3)
Subtraction facts within 20 – strategy focused (1.OA.6)
Missing subtrahend or minuend (1.OA.8)
Double digit addition/subtraction using concrete models or drawings &
strategies based on place value, properties of operations and/or the
relationship between addition & subtraction (1.NBT.4)
TD#3
5/10/16
1
Math Review Categories - Second Grade
Previous grade levels’ categories should be mastered before progressing to 2nd grade level
categories. (start with page 1 or, if needed, kindergarten categories)
2nd GR. CATEGORIES
Addition and Subtraction Facts to 20 for
fluency: (doubles, make 10, build through
10, doubles plus 1, doubles plus 2 strategy,
etc.), one strategy at a time
Number Patterns
Addition and subtraction
Value/quantity
Telling Time
Addition and subtraction
Sequence Within Categories
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2nd gr. Sequence of Categories
Understanding of strategies to build fluency (i.e. 2 apart, doubles,
doubles +1, make a 10 and add on) (2.OA.2)
Unknown addend
Unknown subtrahend or minuend
Skip counting forward and backward by: 2, 5, 10, 100 (2.NBT.2)
Even/Odd Numbers (2.OA.3)
10 more/10 less (2.NBT.8)
Express an even number as a sum of equal addends (2.OA.3)
2 digit addition and subtraction (2.NBT.B.5)
3 digit addition and subtraction – sums through 1000 (2.NBT.B.7)
Estimating sums and differences
Represent whole numbers as lengths from 0 on a number line (2.MD.6)
Digit value with 3 digit numbers (2.NBT.1)
Expanded notation within 999 (2.NBT.3)
Estimation
Comparison of 3 digit numbers (greater, less, equal) (2.NBT.4)
Skip counting forward and backward by 100 (2.NBT.2)
Tell and write time to the nearest five minutes (2.MD.7)
2 digit addition and subtraction with decomposing numbers/strategies
other than the standard algorithm of “regrouping” (2.NBT.5)
100 more/100 less (2.NBT.8)
3 digit addition and subtraction with decomposing numbers/strategies
other than the standard algorithm of “regrouping” (2.NBT.5)
Repeated addition to total an array (2.OA.4)
Partition a rectangle into rows and columns of same-size squares and
count to find the total (2.G.2)
TD#3
5/10/16
2