IOT POLY ENGINEERING Trade homework assignments with a partner. 2.Measure each of your partner’s answers. 3.Place a check next to correct measurements and an “X” next to incorrect measurements. Communication Technology DRILL January 6, 2010

IOT POLY ENGINEERING 2-12 CLASSWORK REVIEW – #1-15

IOT POLY ENGINEERING 2-12 HOMEWORK REVIEW – #15-30

IOT POLY ENGINEERING 2-12 How many degrees are in a RIGHT ANGLE? What is the total number of degrees in a SQUARE? Divide that square in half, diagonally. How many degrees are in each triangle? How many degrees is each ANGLE in this isosceles right triangle? Degrees Degrees 1 = 90 Degrees 3 = 45 Degrees 2 = 45 Degrees Degrees DRAFTING PREPARATION

IOT POLY ENGINEERING 2-12 A triangle with all sides equal lengths is an A triangle with all angles equal is an A triangle with 2 sides/angles equal and 1 side/angle different is an A triangle with all unequal sides/angles is a The sum of the three angles in ALL triangles is ____ degrees. Equilateral Triangle Isosceles Triangle Scalene Triangle 180 DRAFTING PREPARATION

IOT POLY ENGINEERING 2-12 Sharpened Pencil - different line weights Drawing Board –Smooth, flat surface T-Square –“Head” and “Blade” –Horizontal lines ONLY –Used in conjunction with triangle for vertical lines Triangles –30-60 and 45 triangle –Used in conjunction with t-square for vertical lines Compass – circles Protractor – lines at angles DRAFTING TOOLS

IOT POLY ENGINEERING 2-12

IOT POLY ENGINEERING 2-12 HORIZONTAL LINES –Hold t-square TIGHT against board –PULL your pencil, DO NOT push it –Hold pencil at slight angle to paper (60 degrees) –Twist your pencil to keep a consistent point –DO NOT allow pencil to go under t-square VERTICAL LINES –Hold triangle TIGHT against t-square –Hold t-square TIGHT against board –NEVER use the t-square alone for vertical lines DRAFTING

IOT POLY ENGINEERING 2-12 Get a set of drafting tools: –T-Square –1 Triangle –~4” Tape –Ruler Turn last night’s homework over to use the back Communication Technology PREPARATION

IOT POLY ENGINEERING Square bottom of paper to drawing board using T-Square 2. Fasten upper left corner of sheet with tape Smooth to the lower right corner 4. Attach 3 DOUBLE-CHECK TO ENSURE SQUARE

IOT POLY ENGINEERING Smooth across to upper right, then attach 6. Smooth to lower left; finish attachment 5 6 DOUBLE-CHECK TO ENSURE SQUARE

IOT POLY ENGINEERING 2-12 ½” 1. Begin all lines as LIGHT construction lines. 2. Draw a ½” border and a ½” title block 3. Add 3 LIGHT lettering guidelines, 1/8” apart ½”

IOT POLY ENGINEERING Add title block separators - Medium Weight 1½”2½”3 ½”2” 2. Draw diagonals to find center. 3. Darken border lines.

IOT POLY ENGINEERING ½”2½”3 ½”2” LETTER the title block information: 1.BPI-IOT 2.LINE WT. PRACTICE 3.LAST, First Initial 4.14 OCT 08 5.PER # 6.FULL SCALE

IOT POLY ENGINEERING ½”2½”3 ½”2” Quadrant 1 Use the “X” in the center of your drawing space to divide your paper vertically and horizontally. Darken with border lines (Very Heavy) Quadrant 2 Quadrant 4 Quadrant 3

IOT POLY ENGINEERING 6’-0” 10’-0” 14’-0” 8’-0” Q2Q1 Q3Q4 Practice your line weights: Q1. Light lines Q2. Light, then medium lines Q3. Light, then heavy lines Q4. Light, then very heavy lines ¼” APART 10 vertical lines, then draw horizontals