This unit provides centers-based differentiated lesson plans that have been structured using brain research principles. In this unit you will find teacher tips to help with the transition to centers-based teaching. Each lesson within the unit comes with: a complete lesson Plan, a lesson presentation for Smart Boards (pdf provided as well), a student packet for recording and assessing student work, files with all teacher-made materials for centers activities, and answer key. This unit should be completed within three 90-minute block classes or six 45-minute classes.


  • Mathematics > General

Education Levels:

  • Grade 3
  • Grade 4
  • Grade 5





Access Privileges:

Public - Available to anyone

License Deed:

Creative Commons Attribution 3.0
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Curriki Rating
On a scale of 0 to 3
On a scale of 0 to 3

This resource was reviewed using the Curriki Review rubric and received an overall Curriki Review System rating of 3, as of 2009-08-24.

Component Ratings:

Technical Completeness: 3
Content Accuracy: 3
Appropriate Pedagogy: 2

Reviewer Comments:

This is a well-developed lesson plan that instructs students about the concept of positive and negative numbers. The lesson includes a lesson plan, a problem solving element, tiered practice problems, and a hands-on activity. There is also an answer key for the practice problems. All activities are provided in Word or Notebook, plus in PDF format. The activities are appropriate for upper elementary school students and can be adjusted to accommodate needs of individual teachers and classrooms. The directions for the first "Hands-On" part of the lesson are not clear. Otherwise, this is a very organized lesson.
Nikki Velez
Great content! Thank you!

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