# Collections

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##### Euclid's Elements - Books 1-4 (samples)

This collection features several apps that were created for the electronic book for the iPad that adds interactive diagrams to Euclid’s Elements, a mathematical classic (Available from the iTunes store).##### Common Core Nuggets: Pythagorean Theorem 8.G.6

This collection contains apps that will help teachers implement Common Core Standard 8.G.6 for 8th grade mathematics.##### Whimsical Clocks Ch.3 Binary Clock

Our binary digital clock has 3 sections, red beads for hours, purple for minutes and cyan for seconds. Beads in the up position represent the binary digit 1, beads in the down position represent 0. In addition to the Binary Clock, we've provided a Binary Test app to practice your binary numbers.##### Creating HTML5 Apps with Geometry Expressions

This collection contains the examples apps that were created for "Creating HTML5 Apps with Geometry Expressions."##### Circles, Tangents, and N-gon Diagonals

A sequence of apps exploring some interesting characteristics of odd-sided regular polygons.##### Common Core Nuggets: Trigonometric Functions

This collection contains apps that will help teachers implement Common Core Function Standard F-TF 2, 3, 5 for High School Mathematics. Apps with an * indicate that they address the modeling standard.##### Wolfram Technology Conference

Apps accompany Phil Todd's presentation: "Symbolic mechanics: from optimal trebuchets to simple chaotic machines"##### Common Core Nuggets: Area Formulas 6.G.1

This collection contains apps that will help teachers implement Common Core Standard 6.G.1 for 6th grade mathematics.##### Proportional Puzzlers

A collection of puzzlers that involve points that are located proportionally by functions or constants on curves.##### Using Force to Crack Some Geometry Chestnuts

Some apps illustrating Philip Todd's Presentation*Using Force to Crack Some Geometry Chestnuts*by Mark Levi

##### NWMC 2013

Apps for presentation entitled "Creating electronic handouts and assessments as browser, tablet or smartphone apps"##### Common Core Nuggets: Conics

This collection contains apps that will help teachers implement Common Core Geometry Standard G-GPE 1, 3 for High School Mathematics.##### Whimsical Clocks Ch4 Kaleidoscope Clock

A Kaleidoscope works as a combination of reflections. Mirrors are typically arranged in an equilateral triangle producing multiple reﬂections as a symmetric pattern which changes as the triangle rotates. The apps in this collection explain how it's done, and then, of course, turn the kaleidoscope into a clock!##### Finding the Fermat Point by Physics and by Transformation

These apps accompany the presentation**Finding the Fermat Point by Physics and by Transformation**in the

*More Favorite Geometry Proofs*session at MathFest 2014