We will focus our explorations on 4 major types of mechanical motion: linear, rotary, reciprocating, and oscillating.
Concepts Explored
force
gravity
friction
direction
Students will use common materials to build a character that climbs up and slides down two strings to demonstrate linear motion.
For prep I laser cut the template on chipboard, glue the top straw section to the clothespin, and cut the smaller straw sections.
The students trace the template on white cardstock, illustrate, cut out their illustration, glue the illustration to the template, attach small straws with masking tape, tie on first cork, thread the project, and tie on final cork.
Our first linear motion exploration will be a marble board challenge. Students will work in pairs to build a marble run that allows the marble to fall at the slowest possible rate.
Concepts Explored
axle
rotation
balance
friction
symmetry.
Students will construct working pinwheels from paper, a dowl, cork, and a pushpin.
Students will use straws, cardboard, dowels, and carstock to construct a gymnastic character.
Concepts Explored
arcs
pivot point
fixed point
Students will harness the power of the pendulum to create unique bobble head character.
Concepts Explored
secondary motion
fixed connection
movable connection
cam
shaft
crank
We will take inspiration from Oliver Jeffers wonderful book, What We'll Build and create moving depictions of our dream creations.
Then we'll explore cardboard linkages. Which are a fun and flexible way to create a variety of movements.
Read Just Help! by Justice Sonia Sotomayor
Brainstorm a list of service or helping words that are found in the text.
Teach students how to assemble a slider mechanism.
Have students build their own slider and use it to animate one of their service words.
Read Don't Hug Doug
Use a flipped slider to make a self portrait puppet with movable lower jaw.
Have puppet say something students feel others need to know about them.
Head template below.
We loved our characters so much we decided to create short graphic stories about them.
Class reads Would You Rather? by John Burningham
Class discusses choices - from silly to serious.
Teacher introduces see-saw mechanism
Students create a interactive picture that shows a choice. (Template below).
Template
Show class the scissor mechanism.
Read Stuck by Oliver Jeffers
Students create a scissor mechanism device to unstick or help one of the items/animals/people who got stuck.
left shoe
kite
right shoe
cat
ladder
bucket of paint
duck
chair
bicycle
kitchen sink
front door
car
milkman
orangutan
small boat
big boat
rhinoceros
long-distance truck
house across the street
lighthouse
whale
firetruck
fireman
Read The Big Umbrella by Amy June Bates.
Introduce the umbrella mechanism.
Students build a scene that shows who they welcome under their umbrella.
Now that you've learned to make a variety of mechanisms, how might you use three or more of them to make an original creation?
Concepts Explored
lever
crank
incline plane
ramp
joint
mechanism
Review the idea of a lever.
Explain a clothespin is a classic example of a tool built from a lever?
Discuss other levers we see/use in our daily lives.
Show example of clothespin critter.
Build clothespin critters.
Read Fairy Science by Ashley Spires
Review the concept of a lever.
Show the flying fairy example. Examine the mechanism. Is this a lever? Why or why not.
Build flying fairies.
Review the concept of a crank.
Share example of pop-up critter.
Discuss how a crank is used here.
Build pop-up critters.
Review cranks & cams
Analyze this mechanism. How does it work? What is crank? What is cam?
What do the beads do?
Build and test!