1. UNDERSTANDING PLACE VALUE M.1.NBT.2 understand the two digits of a two-digit number represent amounts of tens and ones. Understand the following as special cases: 10 can be thought of as a bundle of ten ones — called a “ten.” The numbers from 11 to 19 are composed of a ten and one, two, three, four, five, six, seven, eight or nine ones. The numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 refer to one, two, three, four, five, six, seven, eight or nine tens (and 0 ones). (CCSS Math.1.NBT.2)

2. ONES & TENS One’s 1-9 Ten

3. PLACE VALUE SONG Mr. R’s Songs for Teaching(2011, October 24). Place Value Math Song: Ones, Tens, Hundreds. Retrieved from https://www.youtube.com/watch?v=5W47G-h7myY

4. EXAMPLES 2442

5. TEST YOUR KNOWLEDGE

8. ADDITIONAL RESOURCES Place Value Hockey http://www.abcya.com/place_value_hockey.htm http://www.abcya.com/place_value_hockey.htm Place Value Lesson https://www.youtube.com/watch?v=omkDLmfvetk https://www.youtube.com/watch?v=omkDLmfvetk Citation: Common Core 4 Kids (2012, December 8). Place Value Lesson. Retrieved from https://www.youtube.com/watch?v=omkDLmfvetk https://www.youtube.com/watch?v=omkDLmfvetk Mr. R’s Songs for Teaching(2011, October 24). Place Value Math Song: Ones, Tens, Hundreds. Retrieved from https://www.youtube.com/watch?v=5W47G-h7myYhttps://www.youtube.com/watch?v=5W47G-h7myY