Monday, January 4th, 2009

Welcome back from Winter Break! Our Benchmark test results are in and I am studying our results. Will talk to you guys tomorrow about it.

1. We need to wrap up chapter 5, so lets focus and work hard today.

2. Fill in the blank: Parallelogram opposite angles conjecture: The opposite angles of a parallelogram are _______________. In order to do this, construct a parallelogram on geogebra and measure the angles.

3. Fill in the blank: Parallelogram consecutive angles conjecture: The consecutive angles of a parallelogram are ___________________. (Remember that consecutive angles are next to each other.) Use the same parallelogram to figure this one out.

4. Fill in the blank: Parallelogram opposite sides conjecture: The opposite sides of a parallelogram are __________________. This time measure the length of the sides. Many of you should be able to figure this one out without even doing any work, the answer is obvious.

5. Fill in the blank: Parallelogram diagonals conjecture: The diagonals of a parallelogram __________________________________. Connect the opposite vertices with a diagonal and take measurements.

6. Fill in the blank: Double-edged straightedge conjecture: If two parallel lines are intersected by a second pair of parallel lines that are the same distance apart as the first pair, then the parallelogram formed is a _______________. See if you can create this on geogebra. The final answer is a not "square" however.

7. Fill in the blank: Rhombus diagonals conjecture: The diagonals of a rhombus are ___________________, and they ____________________________. Using a rhombus you've created on geogebra, connect the diagonals and measure angles and distances.

8. Fill in the blank: Rhombus angles conjecture: The _______________ of a rhombus ________________ the angles of the rhombus. Measure the angles.

9. Fill in the blank: Rectangle diagonals conjecture: The diagonals of a rectangle are _____________ and __________________. Make a rectangle, connect the opposite vertices, and measure angles and distances.

10. Fill in the blank: Square diagonals conjecture: The diagonals of a square are ______________, _______________ and ____________________. You should be able to figure this one out just by looking at all the work you've done to this point.

11. Homework: 1 through 6 on page 281, 1 through 11 on page 290.