Homeschool Math
Homeschool Math: Decimal Place Value: One Decimal Digit
This is a complete lesson with instruction and varied exercises, explaining how the place value system works with decimals that have one decimal digit, and how to write such decimals in expanded form.
Better Lesson
Better Lesson: Mentally Speaking!
Using base ten blocks and place value, 2nd graders explore how to become more fluent in adding and subtracting two-digit numbers without regrouping.
Better Lesson
Better Lesson: Patterns Make Ten
This lesson builds a foundation for adding larger numbers which is supported by the Common Core standards for second grade.
Better Lesson
Better Lesson: Making Change Using Partners of One Hundred
Using dimes to make change is another way to work with subtracting tens within 100.
Better Lesson
Better Lesson: More Dimes and Dollars
Second graders need practice using coins and dollars and relating them to ones, tens and hundreds. Common Core standards include counting by 10s and 100s.
PBS
Pbs Learning Media: Rounding to Whole Numbers
This interactive lesson focuses on using what you know about number lines and rounding from the tenths place to make decimals whole numbers and then asks you to explain your reasoning to show comprehension.
Education Place
Houghton Mifflin: Eduplace: Compare and Order Whole Numbers to 100
In order to help children understand what numbers mean, it is helpful to teach them how to compare and order them. This site provides lesson plans, tips & tricks, and frequently asked questions. It's concise and easy to understand.