In the past, I used to give my students lecture notes on the properties of special quadrilaterals (parallelograms, rectangles, rhombi, squares), and always felt that it was "easy," since their properties seemed obvious to me.
Of course, when they went to work on the problems, it wasn't so easy or obvious to them!
Since then, I've found it much more productive to start the class with a mini-lesson (15 or 20 minutes max) to show them about what they'll be learning.
Then, the rest of the block, I have them measure, compare, explain, and justify their work and observations.
One major misconception I've discovered recently is that when students see pictures of parallelograms, their brains visually process it as a rectangle drawn in perspective, so they will often make false inferences about it, such as that its diagonals are congruent. While this doesn't explain every misconception they make, I find it handy to remind the students about this issue and to clear up the confusion by simply measuring the objects in front of them on the paper.
I use this activity within cooperative groups, and I circulate to make sure they are getting the purpose of the questions.
The file includes spiral review problems.
This worksheet is intended to be written on directly.
Please download the pdf preview file first, so you can see exactly what's included; the product file is a word document, which you may personalize for your students.
Note: Though the product does not include an entire key, I do have a key for one portion of "fill-in-the-blank" questions, which I like to print out and use to check students responses during the block.
(F13 means Fall 2013)
Immediately before this worksheet, I use the assessment named 'Geometry Group Practice Test Proofs and Concurrency Fall 2013' (http://www.teacherspayteachers.com/Product/Geometry-Group-Practice-Test-Proofs-and-Concurrency-Fall-2013-1269995
), and immediately after this worksheet, I use the worksheet named 'Trapezoids and Kites Properties Fall 2013' (http://www.teacherspayteachers.com/Product/Trapezoids-and-Kites-Properties-Fall-2013-1072436