So, what's with the biscuits? Oh a triangulator machine! Very cool! Right, there are four different types of triangle. First, here's an isosceles triangle, it has two equal length sides and two ...

Each triangle type has a different colour (pink for scalene ... noticing what changes when the triangle is dragged and what stays the same. 4. Now have a student explore trying to overlap the blue ...

So, what's with the biscuits? Oh a triangulator machine! Very cool! Right, there are four different types of triangle. First, here's an isosceles triangle, it has two equal length sides and two ...