Saved by the Snake!

Alright, so I know the Python programming language is actually named after the Monty Python group, but after all, the language’s logo (shown here) is a pair of snakes.

One of the great things about the site is how easy it has been to build the worksheets using Python, and it’s definitely gotten me out of some jams. Like today. I built all of the recent geometry worksheets using graphics saved in PNG format, which is a loss-less file format, making it somewhat more attractive relative to the older JPEG format. PNG isn’t a terribly new file format, but some people (including my wife) have had trouble printing the new worksheets. What I really needed to do was convert the 361 PNG files on which I’d labored over into JPEGs and then regenerate the worksheets.  Not much fun for a lazy guy like me.

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Circles… Lowest Form of Geometric Life?

Somewhere out there I’m sure there’s a guy whose job is just to come up with crazy sounding names for all the shapes in the geometry zoo. Worse than the guy who names bacteria. But I suppose, better that than working out all the equations needed to compute key measurements for all those mangy beasts.

Fortunately, we’re starting near the bottom of the geometric food chain. After all, what’s less complex than a shape with exactly one side? Of course, that’s our friend, the perfect circle… The single-celled organism of math. Circles are special in that given one dimension, you can determine all sorts of interesting facts. Got a radius? You’re a few multiplications away from a diameter, area and circumference. And if your basic algebra kung-fu is strong, you can go from area to diameter to radius to circumference just as easily.

Given all the interesting tricks you can do with circles, it’s no surprise how big a role simple circle geometry plays when you start getting into trigonometry. Which is all the more reason for getting the basics down early, and hence the healthy collection of circle geometry worksheets at the links below. Enjoy!

Worksheets for Perimeter and Area of Rectangles Added!

A new set of perimeter and area worksheets for rectangles has been added to the site at the link below, or as usual, by navigating that ever-growing menu of worksheet confections off to your right…

Perimeter and Area of Rectangles Worksheets

New Geometry Worksheets

With the end of the school year on the horizon, the spectre of trapezoids, parallelograms, and scalene triangles has reared its head in 3rd grade math. The task seems to entail more than just helping my daughter… I couldn’t quite remember if a square is technically a rhombus or not. Clearly it’s time for Dad review as well. It looks like we’re going to skim the outer edges of geometry this year, so the initial worksheets focus on identification of concepts more than calculation, but I expect this section to grow substantially over time.

The new worksheets this pass focus on identifying types of angles (acute, right or obtuse), perpendicular or parallel lines, classification of triangles and classification of quadrilaterals. There’s also a few basic worksheets on identifying types of polygons.  And, yeah, squares are actually special cases of both rhombi and trapezoids. And convex bicentric parallelograms. I hope you are hanging in with me for emotional support by the time trigonometry comes around because the review may kill me.

Check out the new worksheets at the links below or in the ‘Worksheets’ menu to the left!

Intersecting, Parallel or Perpendicular Line Geometry Worksheets

Acute, Right, Obtuse Angle Worksheets

Identifying Triangles, Quadrilaterals and Polygons Worksheets