1. U3b-L3 Drill 1.Engineering design is the result of what two things? 2.Design must be continually __________? 3.What is risk analysis used for? Formal, sequential process and goal- oriented research Refined Minimize likelihood of undesired outputs November 21, 2010

2. Explain how technology is a system. Express the major components of technological systems in a flow chart: Quiz INPUTS PROCESSESOUTPUTS GOALS FEEDBACK & Control U3b-L3

3. Power Tool Practice TOOL PRACTICE Take Notes on Following Steps U3b-L3

4. DRAFT SHAPES MARK –Cut shapes out with scissors –Trace it on stock with pencil –Mark center point on stock DOUBLE-CHECK CUT –Drill holes with drill press first –Cut: Band Saw for straight cuts Scroll Saw for curved cuts TEST YOUR PRODUCT –No more than 1/16” difference TOOL PRACTICE U3b-L3

5. Before students are able to draft the shapes on the right, they must be able to make circles using a compass. TOOL PRACTICE U3b-L3

6. TOOL PRACTICE U3b-L3 To draw a circle (or arc) with a compass: Make sure that the hinge at the top of the compass is tightened so that it does not slip Tighten the hold for the pencil so it also does not slip Align the pencil lead with the compass's needle Press down the needle and turn the knob at the top of the compass to draw a circle (or arc)arc Knob

7. Draw circles using a compass. TOOL PRACTICE U3b-L3 Complete circle practice handout

8. Complete circle practice worksheets. Complete the Adaptive Design assignment. HOMEWORK U3b-L3 The tools below is required and must be supplied by students during this unit. Ruler Compass Protractor