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
Bisect a Segment
Identify Geometric Shapes
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…
Copy Any Polygon
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
Construct Congruent Angles
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
Geometric Drawing
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
Get Yourself Some Unifix Cubes
… or something similar. These simple blocks are perfect for an endless variety of activities, particularly for math. Kids love the bright colors, and they stack together and come apart easily enough for little fingers. Left to his own
Keep It Real
When teaching your littles about money, you can buy plastic coins and paper dollars, but why waste your real money buying fake money? Any time you can use real-world objects for manipulatives, go for it! Today Daddy and our three-year-old
Counting to 100
We recently observed that sacred school holiday: the 100th day of school. My three-year-old is working on counting to 100, and he has been using a 10 x 10 matrix. Ours is just a print-out in a dry erase sheet, but
Rise over Run Away!
Need to teach your big kid slope-intercept form but don’t really feel like explaining it? Â Break out the ol’ TI 86 — or use the amazing free Desmos graphing calculator — and let her figure it out herself. Given the
Dice Challenge
Looking for a new game for your middle kids? Â Make a dice tower. Â They are allowed to walk around it but not to touch it. Â The goal: Find the sum of all the faces that cannot be seen. This begins