This lesson shares helpful reminders, common trouble spots, and simple guidance that keeps teams from making avoidable mistakes. It is not a list of solutions. Instead, it gives students a clearer understanding of what can go wrong and how to avoid losing time during the build.
Goals for the Lesson
By the end of this lesson, students will:
• Understand common problems teams run into
• Know what mistakes create wasted time or failed lifts
• Recognize which ideas cause instability or weak structures
• Feel more prepared for the challenge day build
• Keep their designs simple, strong, and reliable
Materials Needed
• “Secret Manual” PPT (Lesson 07)
• A few sample kit pieces (optional)
• Whiteboard or paper for sketching examples
Lesson Timing
Total: 20–25 minutes
• Warm Start: 2 minutes
• Simple Designs: 5 minutes
• Strength & Stability: 5 minutes
• Pulleys, String, and Alignment: 5 minutes
• Hydraulics & Motion Limits: 5 minutes
• Close: 2 minutes
Lesson Flow
1. Warm Start
Direction: Show the title slide.
Teacher Speaking Points:
“Today we’re going through the Secret Manual. These are not solutions and not instructions. They are simply helpful reminders — things that students often forget or overlook while building.”
2. Keep Designs Simple
Direction: Show the “simple works best” slide.
Teacher Speaking Points:
“Simple designs usually work better. The more parts you add, the more chances something has to wiggle, twist, or fail. Strong and simple will always beat complicated but fragile.”
3. Build a Strong Base
Direction: Show slides about base stability.
Teacher Speaking Points:
“Your base must stay solid. If the bottom wobbles, the whole machine will wobble. Make sure the frame and supports are steady and centered on the board.”
4. Watch for Twisting and Leaning
Direction: Show examples of frames leaning or twisting.
Teacher Speaking Points:
“If your lift leans or twists, the weight may swing, fall, or never lift at all. Straight lines, square corners, and even tension make a big difference.”
5. Use Pulleys Wisely
Direction: Show pulley reminders.
Teacher Speaking Points:
“Pulleys must move freely. If a pulley is too tight, too loose, or crooked, your lift loses power. Keep pulleys straight and make sure the string slides smoothly.”
6. String Tension Matters
Direction: Show string and knot slides.
Teacher Speaking Points:
“Loose string gives weak lifts. Over-tight string jams. You want clean, even tension. Good knots keep things secure, and clean routing keeps things from rubbing or catching.”
7. Avoid Rubbing and Friction
Direction: Show friction examples.
Teacher Speaking Points:
“If your string rubs against beams or corners, you lose force. Make sure your lines stay clear and glide along pulleys instead of scraping against parts.”
8. Keep Hydraulics Straight
Direction: Show hydraulic alignment slides.
Teacher Speaking Points:
“Hydraulic pistons work best when they’re straight. If they’re tilted or pushed sideways, they lose power or jam. Clean, straight motion gives you a stronger lift.”
9. Hose Length and Air Bubbles
Direction: Show tubing slides.
Teacher Speaking Points:
“Your hoses must be the right length. Too much tubing wastes movement. Too little can pull or kink. And air bubbles make the system spongy, so try to keep the lines filled.”
10. Don’t Depend on Speed
Direction: Show motion-control slides.
Teacher Speaking Points:
“Fast movements look exciting, but fast lifts often fail. Slow and controlled motion works better and keeps the weight steady during the thirty-second hold.”
11. Focus on Stability Over Height
Direction: Show stability tips.
Teacher Speaking Points:
“A tall lift is great, but only if it stays up for thirty seconds. Stability is more important than maximum height. A shorter lift that holds steady will often score higher.”
12. Quick Reflection
Direction: Encourage thinking without giving answers.
Teacher Speaking Points:
“Take a moment and think about which reminders matter most to you. Every team uses these in different ways. Choose the ones that fit your style.”