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 124 Pick’s Theorem

A geoboard is optional for this lesson, although it certainly makes life easier, since Pick’s theorem has to do with using a grid. We have geoboards because we’ve done so many levels of RightStart. And I’d like to pause here and say that I really, really do not like the geoboards: I bought a geoboard directly from RightStart, and it doesn’t match the pictures in the RightStart books (the grid has fewer pegs, which sometime makes the problems in the RightStart book impossible to replicate). Also, the rubber bands drive me nuts; this is not RightStart's fault, though, as it is simply a function of geoboards and the deterioration of rubber bands.

Kid1 reported, though, that the size of the geoboard does not matter for this lesson. Frankly, she breezed through it so quickly that I’m not sure much of anything mattered. The lesson also requires remembering how to find the area of polygons, with references given to previous lessons for those who don’t remember how. Kid1 obviously remembers how.

This is the only RightStart lesson she’s done all week because we’ve been working on Challenge Math, in which we’ve worked with decimals. For the record, Kid1 reports that she will never, ever forget how to do long division with decimals now, having slogged through all of those problems (by the way, for those who have never looked at Challenge Math, it is mainly story problems).