triangles - Fractal Kitty

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triangles

A collection of 7 posts

9 oystercatchers in a mandala packing pearls around an earth reflection in a larger pearl.

Microcosm Oystercatchers

Here is another bird in the series – Microcosm Oystercatchers. These are one of my favorite birds. I often see them in the black basalt cobbles on the coast with their fluorescent beaks. I had a hard time with where I wanted to go with this piece initially and went back to gaskets (something I […]

Loon on water with lunes and area calculation

Pacific Lune

Another bird in the series! This one is a little luney. The lunes of Alhazen have the same area as the triangle. Note: Image was updated from the original post to fix an error

laser cut half square triangles

52 Weeks of Math Activities

Week 46: Half-Square Triangles (Truchet Tiles)

If you are a quilter, then you will be a pro with this week’s activity. For the last six months my quilting mother lived with us through chemo and we watched her quilt her heart out. Now that she moved back to her home, I had to laugh because she would have been so much […]

4 shapes with the same angles (drawn on isometric paper)

Additional Materials

Isometric Drawing (Class Video)

After teaching this a few times this week, I created a video so those that may want to pause and draw at their own pace while playing with isometric paper. Feel free to contact me if you have any questions. I love doodling on Isometric paper – enjoy! Here is a link to the isometric […]

an impossible shape where the outer edges are a hexagon

52 Weeks of Math Activities

Week 32: Isometric Drawing

Let’s get out our pencils, isometric paper, and thinking caps this week! Isometric drawings are often used in engineering and design as a way to display 3D ideas. They can also be used to create optical illusions and escheresque works of art. To start, print some isometric paper, or set your digital

paper torn with ink showing a person walking toward the sun

52 Weeks of Math Activities

Week 31: Angle Inquiry

Sometimes the simplest things have wonder hidden within. This week, learners can play with the angles of polygons. How many degrees are in a triangle? In a quadrilateral? In a hexagon? Is there a pattern? Here is a warm-up activity: Draw a triangle (any triangle), and cut it out. Next, rip the corne

a kitty in a triangle tile that is repeated in the padovan sequence

Padovan Sequence Triangulated Kitty