SE 3.08Constructive Triangles: Large Hexagonal Box

1. 1

   Take out the triangles and sort them by color and shape on the table.

2. 2

   Place the large equilateral triangle in the center.

3. 3

   Find the triangles whose black lines match the sides of the large triangle, and slide one against each side until the lines meet.

4. 4

   Count the sides of the new shape with the child and give the name "hexagon".

5. 5

   Take the hexagon apart and build the other figures the box allows, such as a rhombus, a trapezoid, or a six-pointed star, one at a time.

6. 6

   Lay two finished figures side by side and talk about how they are alike and different.

7. 7

   Return the triangles to the box.

What catches the child’s eye

• A triangle turning into a hexagon as one piece is added to each side
• The six points of the star

Extensions, easiest to hardest

1. Build two figures and lay one on the other to compare their sizes.
2. Find hexagons in the room or outdoors, such as floor tiles or the end of a pencil.
3. Draw and color the figures.