standard_description: Explain why the sum or product of two rational numbers is rational; that the sum of a rational number and an irrational number is irrational; and that the product of a nonzero rational number and an irrational number is irrational.
problem_activity: Problem 1
a.   Draw a pentagon that has two right angles but no parallel sides.
b.   Draw a hexagon with all sides of equal length.
c.   Draw a quadrilateral that is not a parallelogram, rectangle, or square.
Problem 2
Using the
Game Cards
, play the following game with a partner.
Sort the cards into three piles, A, B, and C, according to the letter on the top right of each card.
Place the cards face down into three piles.
Pick one card from each pile.
Flip over the cards you chose. Write down the game card descriptions.
Use the appropriate tool(s) to draw the shape. If the shape is not possible, explain why it is not.


aligns: no