• ## Number Forms

Part of using base-ten numbers correctly is understanding how to express the same number in different forms. This video demonstrates how to express base-ten numerals written in standard form, unit form, expanded form, and number name.

• ## Tape Diagrams: Modeling 2-Digit Addition & Subtraction

Your students continue to use tape diagrams as a visual tool to solve word problems. Now, they solve for an unknown in any position.

This video demonstrates Common Core Grade 2 Standard Operations & Algebraic Thinking: Represent and solve problems involving addition and subtraction.

• ## Place Value Chart: Modeling 2-Digit & 3-Digit Addition and Subtraction

Becoming comfortable with two-digit and three-digit numbers is an important skill in second grade. Your child will master addition and subtraction problems within one-thousand. But, how your child learns to understand addition and subtraction is very important.

If you look closely, a place value chart is a helpful tool to use before your child uses the standard algorithm. The place value chart teaches your child why the standard algorithm works. How powerful!

• ## Foundation of Multiplication & Division

Your child sets the foundation for understanding multiplication and division in second grade. The first layer in building this foundation is a concrete understanding. He will use objects as counters to create equal groups.

Making equal groups, drawing pictures, and using repeated addition all build a strong foundation for third grade, where your child will dive right into multiplication and division!