RightStart Geometry

The continuing saga of our adventures using RightStart Geometry and RightStart B. I have an 11yo and a 7yo who have average math ability.The 11yo has done Miquon, Singapore, RightStart Transitions, Level D and Level E; RightStart has saved her from a life a math phobia.

I try to update our adventures on Tuesdays, although sometimes it doesn’t get done until Wednesday. And sometimes we really haven’t done that much math, so I skip it entirely.


RightStart Geometry:

Lesson 103 Pattern Unit

The smallest repeating of a tessellation is called a unit. Idea introduced in this lesson: a pattern has 3 elements -- a unit, repetition, and a system of organization.

The lesson involves identifying units, and also making translatons of the units. The first exercise looks like the brick pavers that are so popular in landscape applications.

Lesson 104 Dual Tessellations

By connecting the center of each polygon in a tessellation a new tessellation is formed. The student needs to remember how to find the center of a polygon to accomlish this. The lesson is easy, but takes a long time. It’s yet another lesson that can be done while listening to a book on tape.

Lesson 105 Tartan Plaids

The book has some discussion on the history of tartans, and also some information on weaving (the difference between a plain “tabby” weave and a twill weave). A suggestion is made to go look at some plaid fabric, which we have in abundance. The assignment is to design 3 plaids. This is incredibly easy.

By amazing coincidence, Weaver is posting pictures of her latest plaid weaving project today, so we get to look at a plaid on the loom. Kid1 is pretty sure we need to get a loom to further explore this idea.