March 11, 2015
Objective: SWBAT........

This week, students continue Number Worlds, Level E, Addition. Students will continue to explore using partial sums and renaming strategies as they move toward the use of the standard addition algorithm.

• Students can use “carrying” to find the sum of three-digit numbers.

3.NBT.2 Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.

Vocabulary:

• Addition
• Double Fact
• Near Double Fact
• Nice Numbers
• Grouping
• Regrouping
• Partial Sum

Activity:  

• Warm-Up: Adding using expanded form and partial sum
• Carry It Up
• SWB pg 46-47

Debrief: 

• Exit slip: mental math

Homework: None