Elementary Mathematics

1st Grade CMS Partitioning Lessons

Click here for the Partitioning Lessons!
BEGIN WITH THE END IN MIND!
common core expectations...



Unit at a Glance

Suggested Dates:
December 16- December 19

As an additional resource for the 1st grade partitioning lessons, teachers can use the 4 lessons included in Investigations and the Common Core book (pg. CC37-CC57). 

Keep in mind that the goal is for students to notice that when we create more shares, the size of the share gets smaller.

The lessons should be adjusted by providing cut-outs of squares, rectangles and circles for students to fold and cut. 

Discussions should occur as to what happens when they increase the number of cuts or folds. The reference to partitioning as it relates to time should be omitted from these lessons.


Notes about partitioning in 1st grade


*Remember to upload files to share with others, or locate files to use, on the wiki. Be sure to join discussion posts with other colleagues to ask questions, answer questions, and discuss math.



STANDARDS FOR MATHEMATICAL PRACTICE

MP3. Construct viable arguments and critique the reasoning of others.

MP5. Use appropriate tools strategically

MP6. Attend to precision (in communication)

TEAM TIME!
DISCUSS THE FOLLOWING WITH YOUR GRADE LEVEL TEAM:


OPPORTUNITIES FOR DIFFERENTIATION...

Suggestions for students who are struggling...





Suggestions for students who fully understand...




Tools for Teachers

COMMON CORE STATE STANDARDS IN THIS UNIT

Click here for the NCDPI CCSS Unpacking Document

1.G.3   Partition circles and rectangles into two and four equal shares, describe the shares using the words halves, fourths, and quarters, and use the phrases half of, fourth of, and quarter of. Describe the whole as two of, or four of the shares. Understand for these examples that decomposing into more equal shares creates smaller shares.



Words you should hear students use in Mathematical Conversations...

Half of, a fourth of, fair share, equal, parts




Smart Board, Promethean, and Power Point Files: 
 



TAKE NOTE!

As an additional resource for the 1st grade partitioning lessons, teachers can use the 4 lessons included in Investigations and the Common Core book (pg. CC37-CC57).  Teachers should keep in mind that the goal is for students to notice that when we create more shares, the size of the share gets smaller.   The lessons should be adjusted by providing cut-outs of squares, rectangles and circles for students to fold and cut.  Discussions should occur as to what happens when they increase the number of cuts or folds.  The reference to partitioning as it relates to time should be omitted from these lessons.






CLASSROOM ROUTINES!