This Instructional Activity is a part of the Lesson 19, Unit 4, Grade 6. Students develop expressions involving addition and subtraction from real-world problems. It should be clear that the day I was born was my sister's second birthday. Since my sister's age is always two years more than my age, we just add two to my age.
Other Instructional Activities related to this standard
Instructional ActivityExample 1: The Importance of Being Specific in Naming Variables
1 min(s)
