Lesson 8 Add and Subtract Fractions
Let’s add and subtract fractions.
Warm-up Which One Doesn’t Belong: Fraction Representations
Which one doesn’t belong?
Activity 1 Card Sort: Fraction Sums and Differences
Your teacher will give you a set of cards that show expressions.
Sort the cards into 2 categories of your choosing. Be prepared to explain the meaning of your categories.
Sort the cards into 2 categories in a different way. Be prepared to explain the meaning of your new categories.
Activity 2 Add and Subtract
Find the value of each expression. Explain or show your thinking.
Find the value of each sum. Explain or show your reasoning.
How were the calculations the same? How were they different?