Content Standard(s): 
MA2015 (K)  18. Correctly name shapes regardless of their orientations or overall size. [KG2]  MA2015 (1)  21. 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. [1G3]  MA2015 (2)  25. Partition a rectangle into rows and columns of samesize squares, and count to find the total number of them. [2G2]  MA2015 (2)  26. Partition circles and rectangles into two, three, or four equal shares; describe the shares using the words halves, thirds, half of, a third of, etc.; and describe the whole as two halves, three thirds, or four fourths. Recognize that equal shares of identical wholes need not have the same shape. [2G3] 

Local/National Standards: 
2009 Mathematics ACOS Standards (Kindergarten): #5 Recognize that a whole object can be divided into parts. · Distinguishing parts of a whole as equal or not equal #8 Identify twodimensional (plane) shapes, including rectangle, square, circle, triangle, hexagon, trapezoid, and rhombus, and threedimensional (solid) figures, including sphere, cone, and cylinder. National Council of Teachers of Mathematics (NCTM) Principles and Standards for School Mathematics: Process Standards: Reasoning and Proof: Select and use various types of reasoning and methods of proof. Communication: Communicate their mathematical thinking coherently and clearly to peers, teachers, and others. 
Primary Learning Objective(s): 
The students will be able to distinguish between equal and unequal parts of shapes, and problemsolve to find ways to divide shapes equally. 
Additional Learning Objective(s): 
Students will develop problem solving and collaboration skills as they work together to find ways to equally divide shapes. They will communicate their reasoning and problem solving strategies. Students will review the names of the plane shapes. 