Ok so on to the idea that I am going to try tomorrow. I went to a great hands-on workshop by Gary Kubina (I tried to google him but not much came up, so no link), it was called 'Hands-On/Minds-On Geometry". One of the activities that he did was called 'Planes & Lines'. You were given two lines (straws) and two planes (index cards) and you needed to model certain situations, such as, 'a line intersects a plane at a point', 'two parallel planes', 'two planes intersect in a line', etc. It was AWESOME, why didn't I think of this when I was desperately trying to get my students to understand a 2-D picture was a 3-D situation. So I am going to try it tomorrow as we start to talk about Parallel Lines & Transversals.

Here is how I am going to implement it (my students sit at tables of two):

Each table will have 1 ziplock bag with 4 index card, with holes punched in two locations (2 per student) and 4 straws (2 per student).

Using the items in the zip-lock each student will have to model the following situations, they may not have to use all four items for each situation:

- A line intersects a plane at a point
- two lines are skew lines
- two planes are parallel
- a line is parallel to a plane
- two planes are parallel
- two planes intersect in a line
- two lines intersect in a point
- two lines intersection a plane in two distinct points, the two lines are skew

I think there are some classes that are going to love this. Then I think there will be some kids who wouldn't be happy if there were a Million dollars in the bag too.

Here's hoping it goes well.

ER sounds like such a great conference! And your reflection as a teacher is truly amazing! It will really help you grow more than you know! Song know if this applies to you, but for ny kiddos, we talk about 2D stuff as being things you can smash or hold flat between your hands, and 3D as stuff that takes up space (they keep your hands from touching). Way basic, but way easy to conceptualize!!! Miss ya!

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