Content Objective 1: Mentally add multiples of 10 or multiples of 100 to a given number 100-900.
Content Objective 2: Mentally subtract multiples of 10 or multiples of 100 to a given number 100-900.
Continually Taught Throughout Content Objectives:
Relate/explain the strategy used to add and subtract within 1000 to a written method (in words).
Using concrete objects, pictures and words (oral or written), EXPLAIN why place value strategy work for addition and subtraction
Using concrete objects, pictures, and words (oral or written) EXPLAIN why properties of operations work for addition and subtraction.
Use drawings to add and subtract within 1000
Use place value strategy to add and subtract within 1000
Use concrete models to add and subtract within 1000
Compass Learning
Websites:
BrainPop Jr. Videos:
Content Tasks
http://www.commoncoresheets.com/Interactive.php?Worksheet=Math/Interactive/2nbt8
Where Am I on the Number Line Revisited
Shake Rattle and Roll Revisited
Mental Math Revisited
Take 100
EngageNY Lessons (Download Lesson)