Start with a basic construction projects. I recommend The Bookmark . This project is very easy to make and foolproof. The tools to make the projects are easy to attain and safe to use. The materials we used in the classroom were readily available recycled material.
Do not use your own money to supply your classroom with tools and materials. If you want to get seriously involved with technology, go to your principal and establish an appropriate classroom budget to buy tools (capital budget) and supplies (consumable budget).
Because I integrated all projects into the curriculum, your administrators will be highly motivated, from a monetary and curriculum point of view, to support your effort.
Take the time to buy good quality tools and organizational materials for your classroom.
After your students make a bookmark, go to How to Make a Cubic Decimeter. Before you start get Bill Nye the Science Guy Measurement Video. It's a great video to kick off your construction project.
The project has a list of tools and materials you will need. It also has valuable tips on how to organize your class and make the project. Try making the project. I think you will see its value.
Note: Before you begin, read my Important Information section.
After that start thinking of projects that might be fun to construct.
Getting Started
Start Small