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# Common Core 2nd Grade Standards

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## Sahra Camberos

on 9 September 2012

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#### Transcript of Common Core 2nd Grade Standards

Common Core Mathematical Standards
For
2nd Grade Operations and Algebraic Thinking Solve Problems Using Addition and Subtraction Solve problems within 100 to solve one and two step word problems involving adding to, taking from, putting together, taking apart etc. by using drawings and equations with a symbol for the unknown number to represent the problem. Add and Subtract within 20 Using Mental Strategies memorize all sums of 2 one-digit numbers by the end of 2nd grade
Fluently add and subtract within 20 using mental strategies Grouping Objects to Gain Foundations of Multiplication Determine whether a group of objects has an odd or even number of members by pairing them or counting them by 2's.
use addition to find the total number of objects arranged in rectangular arrays with up to 5 rows and 5 columns.
ex. I have 3 rows of cookies with 4 cookies in each row, how many cookies do I have?
Use repeated addition and counting by multiples to demonstrate multiplication
use repeated subtraction and equal group sharing to demonstrate division Number and Operations in Base Ten Place Value understanding how each digit in a number has a different value amount up to the 1000's.
ability to skip count by 5's, 10's and 100's.
Comparing numbers using place values Adding and Subtracting Using Place Value must be able to add and subtract withing 1000 using place value, properties of operations and/or the relationship between addition and subtraction.
must understand that when subtracting, its the place values that are being subtracted
ex. hundreds must be subtracted from hundreds, tens from tens, and ones from ones
using base ten, students must be able to mentally add or subtract numbers 100-900 Measurement and Data Measure and Estimate lengths in Standard Units Measure the length of an object by using appropriate tools such as rulers, yardsticks, meter sticks and measuring tapes.
Measure the length of an object twice, using length units of different lengths for two measurements. Describe how the two measurements relate to the size of the chosen unit.
Estimate lengths using inches, feet, centimeters and meters
Measure to determine how much longer one object is than another. Relate Addition & Subtraction to Length Use addition/subtraction within 100 to solve word problems involving lengths in the same units. (drawing of rulers) and equations with a symbol for the unknown number in the problem.
Represent whole numbers as lengths from 0 to 100 on a number line diagram equally spaced (0,1, 2) Work with Time and Money Using Both analog and digital clocks, be able to tell and write the time to the nearest 5 minutes understanding a.m and p.m
Solve word problems using dollar bills, quarters, dimes, nickles and pennies
use appropriate symbols for dollars and cents Represent and Interpret Data Map data using a line plot with whole numbers
(measure the length of several objects and record data or measure the same object repeatedly)
Draw a picture graph and a bar graph to represent a data set with up to 4 categories. Students must use correct terminology; thirds, halves, fourths. Geometry Differentiate between shapes; triangles, quadrilaterals, pentagons, hexagons, and cubes Students must be able to cut able to cut a rectangle into rows and columns of equal portions Students must be able to cut circles and rectangles into halves, thirds and fourths or equal portions
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