## Archive for the ‘Uncategorized’ Category

### Compelling Lessons

Posted by: **groupact** on August 22, 2016

### Chapter 5: Symmetry

Posted by: **groupact** on April 18, 2014

### Chapter 3: Direction

Posted by: **groupact** on April 12, 2014

### Chapter 2: Distance

Posted by: **groupact** on April 10, 2014

### PARCC’S Popcorn Problem

Posted by: **groupact** on April 9, 2014

### Always-Sometimes-Never meets Rock-Paper-Scissors

Posted by: **groupact** on March 5, 2014

### The Geometry of Multiplication

Posted by: **groupact** on July 7, 2013

### What Is A Number? (The Lesson)

Posted by: **groupact** on July 6, 2013

### What Is A Number?

Posted by: **groupact** on July 4, 2013

### Rationals, Irrationals, and Decimals

Posted by: **groupact** on April 14, 2013