Priority+Standards

The following are priority standards for grade 2.


 * 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, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.
 * ** 2.OA.2 ** Fluently add and subtract within 20 using mental strategies. By end of grade 2, know from memory all sums of two one-digit numbers.
 * ** 2.OA. ** **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.


 * Numbers and Operations in Base Ten**
 * ** 2.NBT. ** **1** Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones; e.g., 706 equals 7 hundreds, 0 tens, and 6 ones. Understand the following as special cases:
 * a. 100 can be thought of as a bundle of ten tens—called a “hundred.”
 * 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).
 * ** 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.
 * ** 2.NBT. ** **6** Add up to four two-digit numbers using strategies based on place value and properties of operations.


 * Measurement and Data**
 * ** 2.MD. ** **4** Measure to determine how much longer one object is than another, expressing the length difference in terms of a standard length unit.
 * ** 2.MD. ** **6.** Represent whole numbers as lengths from 0 on a number line diagram with equally spaced points corresponding to the numbers 0, 1, 2, …, and represent whole-number sums and differences within 100 on a number line diagram.
 * ** 2.MD. ** **7**.Tell and write time from analog and digital clocks to the nearest five minutes, using a.m. and p.m.
 * ** MA.7.a ** Know the relationships of time, including seconds in a minute, minutes in an hour, hours in a day, days in a week, a month, and a year; and weeks in a month and a year.
 * ** 2.MD.8 ** Solve word problems involving dollar bills, quarters, dimes, nickels, and pennies, using $ and ¢ symbols appropriately. //Example: If you have 2 dimes and 3 pennies, how many cents do you have?//


 * Geometry**
 * ** 2.G. ** **1** Recognize and draw shapes having specified attributes, such as a given number of angles or a given number of equal faces. Identify triangles, quadrilaterals, pentagons, hexagons, and cubes.
 * ** 2.G. ** **3** Partition circles and rectangles into two, three, or four equal shares, describe the shares using the words //halves//, //thirds//, //half of//, //a third of//, etc., and describe the whole as two halves, three thirds, four fourths. Recognize that equal shares of identical wholes need not have the same shape.