U2W1 Lesson 2

 This week, students begin Number Worlds, Level F, Addition and Subtraction. Students gain more practice with number operations by moving onto two-digit problems. They also begin to develop skills in mental math by mentally computing two-digit operations. Students will gain more experience with problem solving by solving story problems. Skills Focus Add and subtract with a one and a two-digit number. Add and subtract with two two-digit numbers. Use mental arithmetic to add or subtract with a one and two-digit number operations. Use mental arithmetic to add or subtract with two two-digit numbers.

https://connected.mcgraw-hill.com/school/h4b2

Objective: SWBAT......

Students can add and subtract with a one- and a two-digit number.

Standard

4.NBT.4 Fluently add and subtract multi-digit whole numbers using the standard algorithm.
Vocabulary
Addition
Sum
Subtraction
Difference
Activity:
Mental Strategies using Base 10 Blocks
SWB PG 8-9
Book Stacks
Debrief:
What are the key words

Homework:
None