## 0. Cover

**Predict:**

-- what is this story about?

**Predict:**

-- what is this story about?

**Predict:**

-- what might be the Martian invasion plan?

**Predict:**

-- will the Martian invasion plan work? why?

**Predict:**

-- what is Zork holding in his hand? what will he do with it?

**Predict:**

-- what's your guess? how did Zork transform the square?

**Explain:**

-- what is a permutation? what is a rotation symmetry?

**Predict:**

-- how many symmetries does a square have? why?

**Explore:**

-- list all the permutations with 1, 2, 3 & 4; circle the rotation symmetries

**Predict:**

-- how many reflection symmetries does a square have? why?

**Explore:**

-- model combining reflections with code at researchideas.ca/sym/s2

-- what did you learn about combinations of reflections?

**Explain:**

-- do combinations of reflections always result in a rotation? explain

**Explain:**

-- what does Pix mean by "symmetry species"?

-- what does this have to do with a "closed set"?

**Predict:**

-- what might "bumper symmetries" be about?

**Explore:**

-- model rotations and reflections of the equilateral triangle with code at researchideas.ca/sym/s2

-- how are the symmetries of the triangle similar to or different from the symmetries of the square?

**Predict:**

-- what are Zork and Gork up to?

**Predict:**

-- what are "bumper symmetries"?

**Explore:**

-- investigate Bumper Symmetries of the square at researchideas.ca/sym/s3

**Explain:**

-- what did you discover with Bumper Symmetries of the square? explain

**Predict:**

-- what will Zork and Gork do next?

**Explore:**

-- investigate Bumper Symmetries of the equilateral triangle at researchideas.ca/sym/s4

**Explain:**

-- what did you learn about symmetry?

-- what did you learn about coding?

-- what would you like to learn next?

**Predict:**

-- what might happen in sequel to this story?