Maths Geometry Update

This Week in Maths we have been learning about geometry and tan-grams, we went on a site called mathigon.com and did the tan-gram maker game which we learnt how to rotate, flip and slide tangram pieces into their correct place. We had a different shapes and we had to fit them into a puzzle outline. Doing the tan-grams is all about rotating, flipping and mirroring. 

We also had to do heaps of long sheets about geometry with stuff like if I do a 1/2 turn clockwise what are you facing? and that was really helpful. 

We have been naming properties of shapes. For example, 

____________

l                       1    This square has four edges, 

l                       1    This square has 4 corners

l                       1     All of the corners are right angles

l                       1     It has 2 sets of parallel lines. 

l___________ 1     All the sides are the same length. 

and we have been doing things like that for multiple shapes. 

This triangle has 3 edges and 3 corners. 

all the lines are the same length. 

the internal angles add up to 180 degrees.

This rectangle has two sets of parallel lines

It has 4 sides and four corners

all the lines are straight

all the internal corners are right angles

opposite sides are different lengths.