OctaflexTask 16 ... Years 2  10SummaryAttractive, apparently straightforward, foam shapes offer spatial challenges which can be quite devilish. Problem solving strategies such as try every possible case are called on (albeit informally) as spatial perception develops. 
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IcebergA task is the tip of a learning iceberg. There is always more to a task than is recorded on the card.


Whole Class InvestigationTasks are an invitation for two students to work like a mathematician. Tasks can also be modified to become whole class investigations which model how a mathematician works. 
The foam Octaflex sets shown in the photo are no longer available. However, you could turn this task into a whole class lesson by drawing the 8 Octaflex pieces using computer software. Draw them based 1cm squares and they will fit the challenge diagrams in the task. Print from the computer to card to make a class set. It helps to print each set on a different colour card (as far as possible) then each pair knows they need to pack up 8 pieces and they know their colour. Now you only have to organise a team to carefully cut out the shapes; perhaps this can be the students in the first class that investigates the Octaflex challenges. The sets can be stored in envelopes for use year after year. Another approach is to start by providing pairs with 1cm linking cubes and displaying the 8 pieces on the screen. The first challenge is to make the 8 pieces. The notes above suggest several directions the whole class investigation could take. Experiences in spatial perception and reasoning underpin them all. 
Is it in Maths With Attitude?Maths With Attitude is a set of handson learning kits available from Years 310 which structure the use of tasks and whole class investigations into a week by week planner. 
The Octaflex task is an integral part of:
