From NCTM’s publication, Principles to Actions: Ensuring Mathematical Success for All:
Facilitate meaningful mathematical discourse.
Effective teaching of mathematics facilitates discourse among students to build shared understanding of mathematical ideas by analyzing and comparing student approaches and arguments.
7:15  20 min  Homework Splats! discussion, Q&A, Problem of the Week 
7:35  20 min  Open Middle: Closest to One (recap)

7:55  30 min  3Act Task: The Cookie Thief

8:25  30 min  3Act Task: How big is the World’s Largest Deliverable Pizza?

8:55  15 min  Book discussion from homework 
9:10  05 min  Closure 
9:15  End of session 
Homework:
 Read pp. 146151 from TAKING ACTION: Implementing Effective Mathematics Teaching Practices in KGrade 5
 Examining Mathematical Discourse
 Deeply Read pp. 175179 from TAKING ACTION: Implementing Effective Mathematics Teaching Practices in KGrade 5
 What the Research says: Meaningful Mathematical Discourse
 Promoting Equity through Facilitating Meaningful Mathematical Discourse
Standards for Mathematical Practice –
 I can make sense of tasks and persevere in solving them.
 I can construct a viable argument and critique the reasoning of others.
“Connect Extend Challenge A Routine for Connecting New Ideas to Prior Knowledge.” Visible Thinking, Harvard Project Zero.
Leinwand, Steve. Principles to Actions: Ensuring Mathematical Success for All. Reston, VA.: National Council of Teachers of Mathematics, 2014. (p. 46) Print.
Gough, Jill, and Jennifer Wilson. “#LL2LU Learning Progressions: SMP.” Experiments in Learning by Doing or Easing the Hurry Syndrome. WordPress, 04 Aug. 2014. Web. 11 Mar. 2017.
Gough, Jill, and Kato Nims. “#LL2LU Learning Progressions.” Experiments in Learning by Doing or Colorful Learning. WordPress, 04 Aug. 2014. Web. 11 Mar. 2017.
Smith, Margaret Schwan., et al. Taking Action: Implementing Effective Mathematics Teaching Practices in Grades K5. The National Council of Teachers of Mathematics, 2017.