Bring in power tools such as drills, electric tape measures, stud finders and sanders. Plug the tools in and turn them on -- with the class a safe distance away. Explain how each tool is used, emphasizing that only adults can use these tools safely. If you have enough space, demonstrate the tool's use as well, demonstrating the importance of proper eye protection. After you show each tool, turn it off and unplug it. Hand it to your students and have them hold it, look at it and describe it to you so they become familiar with each.
If you have space outside your school, enlist the help of your children to plant a small vegetable or flower garden. You can also use pots inside of your classroom. Have all the materials ready: small shovels, hoes, seeds and dirt. Teach the children about gardening tools while letting them use the shovels to move dirt around, and the hoes to create holes for seeds and to tend the garden. Use watering cans, small wheelbarrows any other other tools necessary to maintain the garden.
In a lesson about sanding tools and wood finishing projects, help students make their own sanding block. Provide small woodblocks that will fit into the palm of the students' hands. Help them use scissors to cut a piece of sandpaper that will fit the bottom of their block, then use a spray adhesive to secure the sand paper onto the wood. The students can then use this sanding block on future projects.
Allow your kindergartners to practice what they have learned about tool safety by making a birdhouse. Have pre-cut pieces for your students to use: five six inch square pieces for the body, two six by three inch pieces for the roof and two triangles to fit under the roof. In one of the square pieces, cut a hole for the opening. You will need this set up for each student. Let each child use their sand block to smooth the wood surface, and help them nail or glue the pieces together to create the birdhouse. Allow them to decorate as they want, perhaps with stickers in tool shapes.