standard_description: Use rational approximations of irrational numbers to compare the size of irrational numbers, locate them approximately on a number line diagram, and estimate the value of expressions (e.g., p^(2)). For example, by truncating the decimal expansion of Ö2, show that Ö2 is between 1 and 2, then between 1.4 and 1.5, and explain how to continue on to get better approximations.
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