Support material for Step 2 Tutorial
Steps  Knowledge and understandings and processes students are expected to use (from prior knowledge)  knowledge and understandings needing to be taught  Skills or processes needing to be taught  Thinking skills needing to be used or taught  Where will they likely get stuck 
As your students work through the task they will each be at very different points. This table will help you keep track of students' progress (where they are in the cycle) and to understand individual student needs at different points. It will help you understand where to 'pause' in the process to teach or revise a skill or understanding needed before moving on.
Steps expected from students (eventually)  Knowledge and understandings and processes students are expected to use (from prior knowledge)  knowledge and understandings needing to be taught  Skills or processes needing to be taught  Thinking skills needing to be used or taught  Where will they likely get stuck 
look at the container    
write down all the 2D shapes  2D shape recognition; circles, semicircles, rectangles, squares, etc.  
write down all the 3D shapes  3D shape recognition; spheres, cuboids, cones, hemispheres,  cones, partial cones recognition  
find/recall the formulae for each shape  recall  new conical sections formulae  
find volume of one sweet 
if it's a regular 3D shape then easy (use formula)
finding the average diameter of a sphere using various methods; e.g. 1

 volume of a small irregular shape (science curriculum link) by displacement of water 

find empty space (between sweets) 
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modelling using available materials or on paper?  HERE! 