Wyoming Standards

Wyoming 2nd grade math standards

Every 2nd grade math standard in the Wyoming Content and Performance Standards: Mathematics, in Wyoming's order, with the Lux lessons that teach it.

Operations and Algebraic Thinking

2.OA.1
Use addition and subtraction within 100 to solve one- and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, by using drawings and equations with a symbol for the unknown number to represent the problem.
Taught inTwo-step word problems A story for an equation The total is already there Act out the storyand 3 more
2.OA.2
Fluently add and subtract within 20 using mental strategies. By end of Grade 2, know automatically all sums of two one-digit numbers based on strategies.
Taught inA fact you know beats counting Subtraction is a missing part Make a ten to add Doubles and near doubles

Number and Operations in Base Ten

2.NBT.1a
100 can be thought of as a bundle of ten tens — called a "hundred."
Taught inWhat is a digit worth?Many names for one number New names, same number
2.NBT.1b
The numbers 100, 200, 300, 400, 500, 600, 700, 800, 900 refer to one, two, three, four, five, six, seven, eight, or nine hundreds (and 0 tens and 0 ones).
Taught inWhat is a digit worth?Many names for one number New names, same number
2.NBT.1c
Three-digit numbers can be decomposed in multiple ways (e.g., 524 can be decomposed as 5 hundreds, 2 tens and 4 ones or 4 hundreds, 12 tens, and 4 ones, etc.)
Taught inWhat is a digit worth?Many names for one number New names, same number
2.NBTP.1.A
100 can be thought of as a bundle of ten tens — called a "hundred."
Taught inWhat is a digit worth?Many names for one number New names, same number
2.NBTP.1.B
The numbers 100, 200, 300, 400, 500, 600, 700, 800, 900 refer to one, two, three, four, five, six, seven, eight, or nine hundreds (and 0 tens and 0 ones).
Taught inWhat is a digit worth?Many names for one number New names, same number
2.NBTP.1.C
Three-digit numbers can be decomposed in multiple ways (e.g., 524 can be decomposed as 5 hundreds, 2 tens and 4 ones or 4 hundreds, 12 tens, and 4 ones, etc.)
Taught inWhat is a digit worth?Many names for one number New names, same number
2.NBT.4
Compare pairs of three-digit numbers based on meanings of the hundreds, tens, and ones digits, using the words "is greater than," "is equal to," "is less than," and with the symbols >, =, and < to record the results of comparisons.
Taught inComparing three-digit numbers Same digits, different places Plot and order on a number line Read the line's labels
2.NBT.5
Add and subtract within 100 using strategies based on place value, properties of addition, and/or the relationship between addition and subtraction.
Taught inAdding tens and ones Ten ones make a ten Trade a ten for ten ones Adding by jumpsand 3 more
2.NBT.7a
Relate the strategy to a written method and explain the reasoning used.
Taught inAdding to 1,000 Subtracting to 1,000 Subtraction does not turn around Trade only when you need to
2.NBT.7b
Understand that in adding or subtracting three-digit numbers, add or subtract hundreds and hundreds, tens and tens, ones and ones.
Taught inAdding to 1,000 Subtracting to 1,000 Subtraction does not turn around Trade only when you need to
2.NBT.7c
Understand that sometimes it is necessary to compose or decompose tens or hundreds.
Taught inAdding to 1,000 Subtracting to 1,000 Subtraction does not turn around Trade only when you need to
2.NBTP.7.A
Relate the strategy to a written method and explain the reasoning used.
Taught inAdding to 1,000 Subtracting to 1,000 Subtraction does not turn around Trade only when you need to
2.NBTP.7.B
Understand that in adding or subtracting three-digit numbers, add or subtract hundreds and hundreds, tens and tens, ones and ones.
Taught inAdding to 1,000 Subtracting to 1,000 Subtraction does not turn around Trade only when you need to
2.NBTP.7.C
Understand that sometimes it is necessary to compose or decompose tens or hundreds.
Taught inAdding to 1,000 Subtracting to 1,000 Subtraction does not turn around Trade only when you need to

Measurement and Data

2.MD.1
Measure the length of an object by selecting and using appropriate tools such as rulers, yardsticks, meter sticks, and measuring tapes.
Taught inMeasuring with a ruler Start at zero Count the inches, not the marks Pick the tool and the unitand 2 more
2.MD.7
Tell and write time from analog and digital clocks in five minute increments using a.m. and p.m.
Taught inTime to five minutes Short hand, long hand Almost the next hour Half past and quarter afterand 1 more
2.MD.8
Solve word problems up to 10 involving dollar bills, quarters, dimes, nickels, and pennies, using (dollars) and ¢ (cents) symbols appropriately.
Taught inBigger coin, not bigger value Counting coins Money word problems Making change

Geometry

2.G.2
Partition a rectangle into rows and columns of same-size squares and count to find the total number of them.
Taught inRows and columns of squares
2.G.3a
Describing the shares using the words halves, thirds, half of, a third of, etc.
Taught inHalves, thirds, and fourths Same size, different shapes Equal without matching Equal parts only
2.G.3b
Describing the whole as two halves, three thirds, four fourths.
Taught inHalves, thirds, and fourths Same size, different shapes Equal without matching Equal parts only
2.G.3c
Recognizing that equal shares of identical wholes need not have the same shape.
Taught inHalves, thirds, and fourths Same size, different shapes Equal without matching Equal parts only
2.GP.3.A
Describing the shares using the words halves, thirds, half of, a third of, etc.
Taught inHalves, thirds, and fourths Same size, different shapes Equal without matching Equal parts only
2.GP.3.B
Describing the whole as two halves, three thirds, four fourths.
Taught inHalves, thirds, and fourths Same size, different shapes Equal without matching Equal parts only
2.GP.3.C
Recognizing that equal shares of identical wholes need not have the same shape.
Taught inHalves, thirds, and fourths Same size, different shapes Equal without matching Equal parts only

All Wyoming grades

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