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.
Students review skills learned this week and complete the weekly assessment.
Standard
4.NBT.4 Fluently add and subtract multi-digit whole numbers using the standard algorithm.
Vocabulary
addition
Activity:
Homework Review
Review the difference between regrouping and mental math strategy
SWB PG 14-15
Debrief:
Reflect the 3 Questions
Homework:
None
