Adding and Subtracting Three-digit Numbers Unit: Instructional Videos, Assessments, Homework
This mini unit is designed to be everything you will need to teach students how to add and subtract three digit numbers, this includes with and without regrouping. There are suggestions on how to use the math videos in your classroom included.
Each page in this unit that is considered a “homework” page has a QR Code. The QR Code links to a video that teaches the student how to do the lesson. There are 11 lessons in this unit. These include:
-Adding with Expanded Form
-Adding with regrouping in the Ones (with base ten blocks)
-Adding with regrouping in the tens (with base ten blocks)
-Adding with regrouping with ones and tens (no blocks)
-Addition word problems
-Subtraction word problems
-Subtraction with regrouping in the tens (with base ten blocks)
-Subtraction with regrouping in the hundreds (with base ten blocks)
-Subtraction with regrouping in the tens and hundreds (no blocks)-
-Checking subtraction with addition
There are three different assessments for this unit. The first two are quick checks that are to be used in the middle of the unit, one after the sixth lesson, and one after the eleventh lesson. The last is a final assessment that tests their understanding over the whole unit.
Instructional Math Videos
In my classroom, I implement a Flipped Classroom. This means my students watch a math video for homework each night. They return to school ready to practice the skill together. For classrooms that are not 1:1 or cannot take technology home, you can also use these videos as a small group for reteaching, or for morning work. This video is accessible by a QR Code at the top of a homework page.
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Subtraction with Regrouping .
I would love to hear what you think about this sample unit. All feedback is appreciated!
This follows the Go Math 2016 Second Grade curriculum pace.