I use geometric drawing across the curriculum in several projects. Below is an in-progress shot of an 8th-grader’s design for a stained glass window, an assignment from my medieval history unit that incorporates symbolism along with geometric design. In world
The construction for a regular hexagon is a favorite of my students every year and the one most of them choose as a basis for their geometric design project. We are simply going to begin with a line and use
Today we’ll be bisecting an angle, i.e. cutting an angle in half without using a protractor to measure. Â Begin with any angle and draw an arc from the vertex (V) such that your arc crosses both rays of the angle.
Today we’ll be doing a very simple construction — bisecting a segment. Â In other words, we will be cutting a line segment in half. Â Begin by drawing matching circles from your two endpoints (A and B). Â The radius of the
Here’s a little activity to wrap up our geometry study for the week. Â Have your students consider the following drawing and try to identify as many polygons as they can. Â If they need a little guidance, here are some possibilities…
We can employ the two skills we’ve been working on this week — constructing congruent segments and constructing congruent angles — to create a copy of any polygon. Use a straight edge to draw any polygon. Â Here’s an irregular hexagon
Today we’ll be looking at another basic construction: congruent angles. Â You can use this construction to copy any angle without using a protractor to measure. Begin with the angle you would like to copy. Draw any ray. Â This will act
This week, the big kids are working on their geometric constructions, mathematical drawings achieved with the use of only a compass and an unmarked straight edge. This is one of my favorite units to teach. Â Mathematics in general is an