2nd Grade Mathematics Missouri Learning Standards*
According to the Missouri Learning Standards, 2nd grade Mathematics instructional time should focus on four critical areas.
NUMBER SENSE AND OPERATIONS IN BASE TEN
Video: Introduction to place value (5:58 mins)
Video: Adding hundreds, tens, and ones (3:36 mins)
Video: Comparing whole numbers (2:04 mins)
Video: Addition with regrouping (4:35 mins)
Video: Adding 2digit numbers without regrouping 1 (1:52 mins)
Video: Adding twodigit numbers without regrouping (2:33 mins)
Video: Adding threedigit numbers (2:25 mins)
Video: Adding three digit numbers with regrouping (3:03 mins)
Video: Subtracting: three digit numbers and regrouping (3:19 mins)
Video: Subtracting: regrouping twice (3:47 mins)

I can understand threedigit numbers are composed of hundreds, tens and ones.

I can understand that 100 can be thought of as 10 tens – called a “hundreds.”

I can count within 1000 by 1s, 10s and 100s starting with any number.

I can read and write numbers to 1000 using number names, baseten numerals and expanded form.

I can compare two threedigit numbers using the symbols >, = or <.

I can demonstrate fluency with addition and subtraction within 100.

I can add up to four twodigit numbers.

I can add or subtract within 1000, and justify the solution.

I can use the relationship between addition and subtraction to solve problems.

I can add or subtract mentally 10 or 100 to or from a given number within 1000.

I can write and solve problems involving addition and subtraction within 100.
RELATIONSHIPS AND ALGEBRAIC THINKING
Video: Basic addition (7:42 mins)
Video: Addition 2 (12:25 mins)
Video: Addition 3 (8:56 mins)
Video: Basic Subtraction (8:31 mins)
Video: Subtraction 2 (12:31 mins)
Video: Subtraction 3: Introduction to Borrowing or Regrouping (18;25 mins)
Video: Making 5 (4:05 mins)
Video: Adding to 10 (1:59 mins)
Video: Adding 8 + 7 (3:18 mins)
Video: Adding 7 + 6 (3:52 mins)
Video: Introduction to even and odd numbers (7:29 mins)
Video: Equal sign (4:55 mins)
Video: Intro to multiplication (3:32 mins)
Video: Repeated addition example (2:09 mins)
Video: Properties and patterns for multiplication (8:33 mins)

I can demonstrate fluency with addition and subtraction within 20.

I can determine if a set of objects has an odd or even number of members.

I can find the total number of objects arranged in a rectangular array with up to 5 rows and 5 columns and write an equation to represent the total as a sum of equal addends.
GEOMETRY AND MEASUREMENT
Video: Introduction to area and unit squares (4:16 mins)
Video: Measuring the same rectangle with different unit squares (3:43 mins)
Video: Halves and fourths (2:24 mins)
Video: Equal parts of circles and rectangles (3:04 mins)
Video: Measuring lengths with different units (2:53 mins)
Video: Measuring lengths 2 (4:39 mins)
Video: Estimating lengths (2:02 mins)
Video: Length word problems (5:49 mins)
Video: Telling time exercise example 1 (2:50 mins)
Video: Telling time exercise example 2 (2:15 mins)
Video: Counting American coins (4:30 mins)

I can recognize and draw shapes having specified attributes, such as a given number of angles or sides.

I can partition a rectangle into rows and columns of samesize squares and count to find the total number of squares.

I can partition circles and rectangles into two, three or four equal shares, and describe the shares and the whole.

I can measure the length of an object by selecting and using appropriate tools.

I can analyze the results of measuring the same object with different units.

I can estimate lengths using units of inches, feet, yards, centimeters and meters.

I can measure to determine how much longer one object is than another.

I can use addition and subtraction within 100 to solve problems involving lengths that are given in the same units.

I can represent whole numbers as lengths on a number line, and represent whole number sums and differences within 100 on a number line.

I can tell and write time from analog and digital clocks to the nearest five minutes, using a.m. and p.m.

I can describe a time shown on a digital clock as representing hours and minutes, and relate a time shown on a digital clock to the same time on an analog clock.

I can find the value of combinations of dollar bills, quarters, dimes nickels and pennies, using $ and ¢ appropriately.

I can find combinations of coins that equal a given amount.
DATA AND STATISTICS
Video: Count by category (0:43 mins)
Video: Introduction to line plots (4:00 mins)
Video: Making line plots (3:08 mins)
Video: Picture graphs (2:47 mins)
Video: Reading bar graph examples (2:56 mins)
Video: Solving problems with bar graphs 2 (1:42 mins)

I can create a line plot to represent a set of numeric data, given a horizontal scale marked in whole numbers.

I can generate measurement data to the nearest whole unit, and display the data in a line plot.

I can draw a picture graph or a bar graph to represent a data set with up to four categories.

I can solve problems using information presented in line plots, picture graphs and bar graphs.

I can draw conclusions from line plots, picture graphs and bar graphs.