Cross Strand Problem Solving

In thinking ahead to Valentines Day, Melissa had her class complete a problem on making valentines.  Her lesson was in a three - part lesson format and was the following:
Minds on - Reading a book to them.  Action - was the following problem: Sierra made valentine cards for her friends.  It took her 5 minutes to make one valentine card.  How long did it take her to make 6 cards? (Adapted from The Math Process Standards Series K-2 by Susan O'Connell) Consolidation - To share answers and develop success criteria from it.

Although telling time to the nearest 5 minutes is not in the Grade 1 or 2 curriculum, Melissa has spent a lot of time getting her students to work on composing and decomposing numbers in different ways.  Her goal for the lesson was to have the students apply a known strategy to a problem in a different strand.  As the students were working, Melissa went around and used the Assessment for Learning tool during her discussions with the students.  This allowed her the opportunity to instantly record their strategy, answer and their errors. 

 Once the students were done, she brought them together to create a list of what made their answer good.  This will now be their success criteria for upcoming problems (photos of that to come later).  Once the students discussed what made their answer good, they then had the opportunity to go back and "edit" their work to put more detail into their answers.  You can see this in the pictures by the different colour that they used.

This pair of  students originally had the incorrect answer.  They then went back and checked their work and noticed the error.

This pair drew too many tally marks originally, they were able to see their error, but simply didn't go back to change the written portion of their answer.

I have made a video of this lesson as it really shows not only what a good three part lesson looks like, but also how you can create success criteria with your class.  If you would like to see the video, or want help in creating success criteria with your class, please let me know.