Math U See Beta - 2 年生の算数 - 複数桁の加算と減算

Beta focuses on teaching the concepts of multiple-digit addition and subtraction. Math U see in taught in a four step approach to ensure mastery. Beta builds on the foundation in Alpha and advances to multiple-digit addition and subtraction. An important concept introduced in Alpha but expanded in Beta is the concept of place value. Understanding this concept is necessary for complete comprehension of multiple-digit operations.

Step 1: Preparation
Step 2: Presentation
Step 3: Practice
Step 4: Progression

Major Concepts and Skills Include:

Understanding place value and using it to add or subtract
Fluently adding any combination of whole numbers
Solving for an unknown addend
Fluently subtracting any combination of whole numbers
Solving abstract and real-world problems involving addition and subtraction
Additional Concepts and Skills: 
Telling and writing time by hours and minutes
Understanding, adding, and subtracting U.S. currency
Measuring and estimating length with inches, feet, centimeters, and meters
Comparing numbers and lengths
Expressing differences between numbers as inequalities
Finding the perimeter of any polygon
Representing and interpreting data in plots and graphs

Sample schedule is as follows:

10/3 Week 1: Place Value and the Manipulatives

10/10 Week 2: Sequencing; Word Problem Tips

10/17 Week 3: Inequalities

10/24 Week 4: Rounding to 10 and Estimation

10/31 Week 5: Multiple-Digit Addition

11/07 Week 6: Skip Counting by 2

11/14 Week 7: Addition with Regrouping (Carrying)

11/21 Week 8: Skip Count by 10

11/28 Week 9: Skip Count by 5; 5 cent = 1 nickel

12/05 Week 10: Money: Decimal Point and Dollars

12/12 Week 11: Rounding to Hundreds

12/19 Week 12: Adding Money; Mental Math

12/26 Week 13: Column Addition

1/2 Week 14: Measurement: 12 Inches = 1 Foot

1/9 Week 15: Perimeter

1/16 Week 16: Thousands and Place Value Notation

1/23 Week 17: Rounding to Thousands 

1/30 Week 18: Multiple-Digit Column Addition

2/6 Week 19: More Multiple-Digit Column Addition

2/13 Week 20: Multiple-Digit Subtraction

2/20 Week 21: Telling Time: Minutes

2/27 Week 22: Subtraction with Regrouping (Carrying)

3/6 Week 23: Telling Time: Hours

3/13 Week 24: Subtraction: Three Digit Numbers

3/20 Week 25: Ordinal Numbers; Tally Marks

3/27 Week 26: Subtraction: Four-Digit Numbers

4/3 Week 27: Subtraction: Money

4/10 Week 28: Subtraction: Multiple-Digit Numbers

4/17 Week 29: Reading Gauges and Thermometers

4/24 Week 30: Bar Graphs and Line Graphs