Preschool Math: Making Groups of Ten

Here's a quick and fun activity to introduce pairs that add to ten -- important math facts to memorize early!  We used our Unifix cubes, but Duplos, Legos, or any other connecting blocks would work as well. I made stacks of cubes for each of the numbers 1 through 9, including two stacks of 5, … Continue reading Preschool Math: Making Groups of Ten

Boundless Energy: Awesome Preschool Science Activity

This week, our marble set has been working overtime.  We engineered a wall of pipes and tracks to run our marbles down, and we've been using it to explore how potential and kinetic energy work.  We began with a short track at the base of the wall and tested  marbles to see if they had … Continue reading Boundless Energy: Awesome Preschool Science Activity

Chalk It Up

More handwriting practice today!  My three-year-old has really been into the Reading 1A trial course from the Ron Paul Curriculum.  He has only watched the first three videos, but he's watched each of them several times over the past five days and is asking for them, as well as Math 1A.  He is still not … Continue reading Chalk It Up

Working Lunch

When you work full-time and are also trying to teach your kids some stuff, you need to make good use of your time at home.  For big brother and me, that often means doing a lot of learning while little brother takes his midday nap.  Here's one example I call a "working lunch," where we … Continue reading Working Lunch

Tessellation Tip

In order to keep them from crawling up the walls in their last week before summer vacation, I've given my seventh graders a tessellation project.  There are about ten million youtube videos explaining how to do this, so I won't bore you with the basics.  Instead, I'll just tell you about my struggles and how … Continue reading Tessellation Tip

Area of Mixed Polygons

In 7th grade math, we're working on area.  We've gone through all of the basic formulas with careful attention to how they are related to one another -- the triangle being half of a rectangle, the trapezoid being a combination of two triangles, and so forth. Now we're on to area of mixed polygons, such … Continue reading Area of Mixed Polygons

Geometry Across the Curriculum

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 history, we use geometric drawing when studying Roman and Islamic mosaics, and students have the … Continue reading Geometry Across the Curriculum

Construct a Hexagon

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 our compass to draw three congruent circles along it.  Start with the center circle. Mark … Continue reading Construct a Hexagon