Lesson plan

# Convert expanded form into standard form by understanding the value of each digit

teaches Common Core State Standards MP7 http://corestandards.org/Math/Practice/MP7
teaches Common Core State Standards MP4 http://corestandards.org/Math/Practice/MP4
teaches Common Core State Standards MP3 http://corestandards.org/Math/Practice/MP3
teaches Common Core State Standards 2.NBT.A.3 http://corestandards.org/Math/Content/2/NBT/A/3

# Convert expanded form into standard form by understanding the value of each digit

Big Ideas: Numbers can be written in multiple forms. The expanded form of a number shows the value of each digit. In this lesson, students will be converting numbers written in expanded form into their standard forms. By focusing on the values of each digit, students will combine hundreds with hundreds, tens with tens, and ones with ones until they find the completed expanded form in order to write the standard form. Vocabulary: expanded form, value, digit, place, standard form, numeral, number word Special Materials: arrow cards (optional)