3D Maths Moderation Assessment

Today was a full on mathematic's day with a short library interlude. Here are some of the materials students have to make their 3D models with, apart from the cardboard nets they have either drawn up themselves or been given.  They will receive three more nets tomorrow.

Possible 3D shape construction materials

Students have the choice of using the A3 Black line proforma I made up for the assessment task (which is already A3 size) or they can save the digital version on to a USB stick so they can use ICT skills to make their poster. I showed them how to obtain and  use images off the net or import their own photos of  the 3D shapes they have made into the document. The A4 posters they make digitally can be easily photocopied and converted to A3 colour if students have them saved on a USB device.  Below are the proformas. I shared one I was making. They have been asked to choose a simple 3D shape and a more complicated one to investigate. Below is the blank  basic proforma.

3D Shapes	Squared-based Pyramid	Hexagonal Prism
Real-life example
Shape of base
Number of faces
Number of vertices
Number of edges
Number of curved surfaces
Skeleton Model OR Cardboard Model OR a  hybrid
Example of 2D Net
Sketches from different angles

  

Extra Information and Interesting Facts

Here are two examples of explanatory posters on 3D shapes which I made from scratch. I have focused on a hexagonal prism which we haven't looked at yet in class. Students can use the above digital template to design their own OR they can be really adventurous and design their own template.

Example 1... to show the possibilities

Example 2 with views and skeleton model

Hexagonal prism made from Plasticine and toothpicks.
The photograph was then inserted into the poster.

Skeleton cube made from peas and toothpicks

I made the cube from toothpicks and frozen peas. We only had baby peas in our freezer which made the job a bit fiddly. When the peas dry and shrink, the structure becomes more rigid. This usually takes a couple of days. Students may like to experiment at home where the peas can be kept frozen before use.

All students chose and made their own skeleton model for a simple 3D shape today and photographed the finished product for insertion into their Explanatory posters. These are on the student drive where students can access them.  Students need to ensure that their Extra Information and Interesting Facts section at the bottom of their posters is in their own words.

Have packed some skewers for G to use tomorrow for her

rectangular prism.  Top efforts with what we had though.

Skeleton cube made by JS

Some snap shots from today:

Making a truncated pyramid skeleton model

Referring to a maths dictionary

The three nets given out on Friday made up. This student 

scored his shapes very carefully.

Step pyramid

AD's square-based pyramid skeleton model

Students also viewed a PhotoStory all about finished shapes boards completed by students from a like age group to give them something to aim for. They will all receive their card tomorrow to mount their finished shapes on and on which to write a summary of the attributes of each shape.

Below is a photo of the finished Japanese flowering cherry blossom trees. They look very effective. Well done Blackman's Bay students. Sensei Townsend must be very proud of you all.  I have one of these trees in my front garden and love it when it flowers in our spring.

Cherry Blossom Viewing

Hanami

I also hope my beautiful-inside-and out grade 6 girl with the severe neck is feeling better. xx