Lesson 2.7
Open Response
Subtraction and the Turn-Around Rule
2 Day Lesson
October 25 &28
Open Response
Subtraction and the Turn-Around Rule
2 Day Lesson
October 25 &28
turn-around rule - A rule that says you can add two numbers in either order and get the same result (for example, 3 + 5 = 8 and 5 + 3 = 8).
number story - A story involving numbers that is made up by children, teachers, or parents. Children solve problems posed in number stories using many different methods. In Grade 2, number stories focus on addition and subtraction.
Home Link 2.7 - The Turn-Around Rule