Geometry is Great!
We have been exploring 2D shapes/polygons in our classroom using a variety of math materials.Students have been especially focused on the geometric attributes of each shapes - the number of sides and the number of vertices (corners) that each shape has.
We know that all polygons have straight sides and are 'closed in'.
We know that polygons can be regular...with equal sides and angles OR they can be irregular...with different length sides and angles.
We have noticed different kinds of triangles, but they ALL have 3 sides and 3 corners.
We were surprised by how many different shapes have 4 sides and 4 corners. We learned that these shapes have specific names (square, rectangle, rhombus, trapezoid, parallelogram) but that they are ALL called 'quadrilaterals' because they have 4 sides/corners.
We also learned the properties of pentagons, hexagons, heptagons, octagons, nonagons and decagons, hendecagons, dodecagon and tridecagon.
As always, we are playing a lot of games And solving some fun polygon problems to reinforce new vocabulary and to provide practice identifying, creating, comparing and thinking about the 2D shapes.
Next...we learn more about the different angles in these polygons!
