Master Teacher lessons

Big Idea:
Subtracting with zeros requires regrouping.

Big Idea:
Students will solve subtraction problems within a context using a tape diagram.

Big Idea:
Place value can help students add.

Big Idea:
A place value chart can help students add multi-digit numbers.

Big Idea:
Using place value helps make subtracting easier.

Big Idea:
Clue words can help you determine when to add or subtract.