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 2-digit numbers without regrouping 1 (1:52 mins)

Video:  Adding two-digit numbers without regrouping (2:33 mins)

Video:  Adding three-digit 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 three-digit 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, base-ten numerals and expanded form.

  • I can compare two three-digit numbers using the symbols >, = or <.

  • I can demonstrate fluency with addition and subtraction within 100.

  • I can add up to four two-digit 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 same-size 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.

 

* Sources:  dese.mo.gov (Grade Level Expectations (GLEs))