Core Skills Analysis
Math
- Shenanigans measured the wheel diameter and calculated its circumference using π≈3.14, applying multiplication of a decimal.
- She timed a 10‑meter sprint and computed the kart’s average speed (meters per second) by dividing distance by time.
- She compared distances traveled with different gear ratios, using fractions to decide which ratio covered more ground per pedal turn.
- She organized the three test‑run results into a simple bar graph, practicing data representation.
Science
- She observed how a push (force) set the kart in motion, linking to Newton’s First Law of motion.
- She noted the kart accelerated faster on a slight downhill, illustrating gravity’s effect on speed.
- She experimented with axle alignment, noticing how increased friction slowed the kart and learning about contact forces.
- She identified the wheel‑and‑axle as simple machines and explained how they reduce the effort needed to move the kart.
Language Arts
- Shenanigans wrote a step‑by‑step instruction guide for building the go‑kart, practicing sequencing and technical vocabulary.
- She kept a journal entry describing the sensations of the race, using vivid adjectives and sensory details.
- She presented her findings to family, using clear oral language, eye contact, and visual aids to meet speaking‑and‑listening standards.
- She labeled each part of the kart, reinforcing spelling of science‑related terms.
Engineering/Technology
- She sketched a simple blueprint, planning the frame dimensions and locating the center of gravity for stability.
- She evaluated two materials—cardboard and lightweight wood—for strength, applying criteria to choose the better option.
- She tested how changing wheel size affected balance, documenting results to iterate the design.
- She used basic problem‑solving steps (identify, brainstorm, test, improve) to create a functional go‑kart.
Tips
Extend the go‑kart project by designing a measured racetrack and having Shenanigans record lap times to calculate average speed and percent improvement over multiple runs. Next, introduce a budgeting element: assign a “cost” to each material and have her plan a build within a set budget, reinforcing addition and subtraction. Explore the history of motor‑less racing by reading about early soap‑box derby cars and then challenge her to create a short story or comic about a futuristic go‑kart race. Finally, set up a simple experiment comparing the kart’s performance on different surfaces (carpet, tile, grass) to discuss friction and surface texture.
Book Recommendations
- The Way Things Work by David Macaulay: A visually rich guide to simple machines and engineering concepts, perfect for connecting go‑kart parts to broader technology.
- Simple Machines: Wheels, Levers, and Gears by David Macaulay: Explains how wheels and axles work, with hands‑on projects that complement Shenanigans’ kart building.
- Go‑Kart Kids: Build Your Own Race Car by Katherine C. Johnson: Step‑by‑step instructions for safe, age‑appropriate go‑kart projects, plus background on racing history.
Learning Standards
- CCSS.MATH.CONTENT.4.MD.A.1 – Measure lengths using standard units and convert between them.
- CCSS.MATH.CONTENT.5.NBT.B.5 – Perform operations with decimals to calculate speed and distance.
- NGSS 5-PS2-1 – Plan and conduct an investigation to describe the effect of force on motion.
- NGSS 5-ETS1-1 – Define a simple engineering problem and propose a solution (designing a stable go‑kart).
- CCSS.ELA-LITERACY.W.4.2 – Write informative/explanatory texts about the go‑kart building process.
- CCSS.ELA-LITERACY.SL.4.4 – Present information orally using visual aids.
Try This Next
- Create a measurement worksheet where Shenanigans records wheelbase length in centimeters, converts to inches, and calculates the area of the kart’s base.
- Write a short "race report" that includes speed calculations, a diagram of the track, and a reflection on what design changes could make the kart faster.