Blog - Geometiles®

We are proud that Geometiles is part of Julia Robinson Mathematics Festival, a unique math event for kids at any ...
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Do you see anything unusual about this picture? These two boys are identical twins; but not just any twins: they ...
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What can a chair teach us about integral calculus? Quite a bit, if you have right chair. British designer Julian Mayor made ...
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To be perfectly honest, I have no idea whether Archimedes wore earrings. However, I couldn't help but think of him ...
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Shapes have fascinated humans since the beginning of time. The polyhedra, or solid shapes with flat polygonal faces, is one ...
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Ah, summer. For kids, it’s the greatest time of year. No school, no multiplication tables, no scheduled break times. Just ...
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I was recently asked to bring a cake to a reception on very short notice. Luckily, I found this recipe for Olive ...
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“Geometry will draw the soul toward truth and create the spirit of philosophy.”—Plato. There is a widening gap between the ...
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Last week the first ever Julia Robinson Mathematics Festiva l was held in San Diego. What a great event celebrating ...
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If you are going to coach a math club, it is likely that you will come across at least some of ...
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I found out first hand how important art instruction is for teaching math from some of our math competitions. When there ...
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Nowadays, thanks to modern day computers, we have instant access to the approximation of π (the ratio of a circle's circumference ...
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Title	Grade Level	Topics	CCSS
Tangrams	Grades 1+	Constructing 2-dimensional shapes	1.G.A.2
Shape Challenge, grade 2 and up	Grades 2+	Constructing polygons	2.G.A.1
Shape Challenge, grade 4 and up	Grades 4+	Constructing polygons; the 4th grade version reflects students’ familiarity with angles and classifying triangles.	3.G.A.1, 4.G.A.1, 4.G.A.2
Fractions	Grades 1 through 5	This sequence takes students from very basic understanding of fractions all the way through multiplying and dividing by fractions.	1.G.A.3, 2.G.A.2, 2.G.A.3, 3.NF.A.1, 3.NF.A.3, 4.NF.A.1, 4.NF.A.2, 4.NF.B.3, 4.NF.B.4, 5.NF
3D Solid Understanding	Grades 2+	Constructing and analyzing a rectangular and other prisms	1.G.A.2
Angle Mania	Grades 4+	Measuring angles, classifying triangles by angle types.	4.MD.C.5, 4.MD.C.7, 4.G.A.1, 4.G.A.2
Ratios plain and golden	Grades 6 through 8	Ratios and proportional relationships; Golden Ratio.	6.RP.A.1, 7.RP.A.2
Volume and Cavalieri's Principle	Grades 6 through 8	Volume and surface area.	HSG.GMD.A1, HSG.GMD.A2, HSG.GMD.A3
Triangles: similar, special, and right	Grades 8+	Similar polygons, special triangles, Pythagorean Theorem, irrational numbers.	8.NS, 8.G.A.4, 8.G.B.6, 8.G.B.7
Platonic and Archimedean Solids	Grades 1+	Platonic and Archimedean solids	Enrichment topic