Preschool Math: Compare Whole Numbers

What the hand does, the mind remembers.  -- Maria Montessori Our son is really into card games lately.  He loves "Go Fish" and "War" especially, but while playing "War, he was having a tough time looking at the cards and determining which was greater.  To help him out, we provided a concrete manipulative -- Unifix … Continue reading Preschool Math: Compare Whole Numbers


Ron Paul Curriculum Trial

As part of our summer plans, we wanted to have some actual academic time amidst all the running through the sprinkler and playing in the pool.  I have had my eye on Ron Paul's home school curriculum for a while, and summer seemed an ideal time to give it a test run. For those unfamiliar … Continue reading Ron Paul Curriculum Trial

Math Everywhere: Division

While preparing for our first family trip involving an airplane, we got to do a little hands-on math.  Our kids' pediatrician suggested we bring gummy bears along for the flight to help avoid painful ear pressure during take-offs and landings.  We bought a big bag and divided them up into four groups -- two for … Continue reading Math Everywhere: Division

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

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

Pythagorean Theorem

In over our heads with radicals in 8th grade Algebra this week, so we took some time to review the Pythagorean Theorem.  Geometry is so beautifully concrete.  In addition to demonstrations you can do with drawings and such, here's an example of a very cool model that my 8th graders found wonderfully entertaining.   As … Continue reading Pythagorean Theorem

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