Spheres, Cones and Cylinders – Circles and Pi - Mathigon
But our world is actually three-dimensional, so lets have a look at some 3D solids that are based on circles: A cylinder consists of two congruent, parallel circles joined by a curved surface. A cone has a circular base that is joined to a single point (called the vertex).
Polygons and Polyhedra - Mathigon
Geometric shapes are everywhere around us. In this course you will learn about angels, polygons, tessellations, polyhedra and nets.
Mathematical Origami - Mathigon
Archimedean Solids. Archimedean Solids, like the Platonic ones, consist of regular Polygons and look the same at every vertex. However the faces are multiple different regular polygons.
share some of the shapes they found with the whole class and explain their reasoning. Here are some useful prompts for drawing the discussion together: 1. How do you know that you have found the smallest/largest possible perimeter? 2. How did you work out the perimeters? 3. What were the areas of your shapes? 4. Why are all the perimeters even ...
Ruler and Compass Construction – Euclidean Geometry - Mathigon
You can imagine that Greek mathematicians were thinking about Geometry on the beach, and drawing different shapes in the sand: using long planks as straight-edge and pieces of string as compass. Even though these tools look very primitive, …
Triangle Congruence – Triangles and Trigonometry - Mathigon
Draw the triangle that has sides of 5cm and 3cm, and an included angle of 40°. Like before, we start by drawing one of the sides of the triangle. Next, use a protractor to measure a 40° angle around one of the two vertices.
John Horton Conway – Garis Waktu Matematika – Mathigon
He explains how to eliminate variables and how to find the side length of two and three-dimensional shapes given their volume or area. To solve some of these problems, Zhu even used the numbers in Pascal’s triangle, more than 300 years before Pascal was born!
Icosahedron and Dodecahedron – Mathematisches Origami – …
Erlebe die schöne Welt des Origami und der Mathematik. Laß dich von atemberaubenden Fotos bezaubern, probiere unsere Faltanleitungen aus oder lerne mehr über den mathematischen Hintergrund.
Ishango Bone – Cronologia della matematica – Mathigon
Zhu shows how to solve problems using systems of polynomial equations with up to four unknown variables, 天 (Heaven), 地 (Earth), 人 (Man) and 物 (Matter). He explains how to eliminate variables and how to find the side length of two and three …
Al-Jabr – Cronología de las matemáticas – Mathigon
Zhu shows how to solve problems using systems of polynomial equations with up to four unknown variables, 天 (Heaven), 地 (Earth), 人 (Man) and 物 (Matter). He explains how to eliminate variables and how to find the side length of two and three …