Inventions

From a problem to a working idea: explore levers, pulleys and gears, build prototypes and choose improvements using test results.

Trial tasks are available without registration. To save results, start classes in your student profile.

From topic to practice

What will we study

Choose a section or take classes in order. Both modes use the same objectives and results.

Problem and simple mechanismsLet's analyze the rule and apply it in independent tasks.

An invention starts with a problem
A need; A success criterion; A constraint.
Tasks: 5 · Theory: 1 · Free lesson
A lever needs a fulcrum
Turning about a fulcrum; The lever arm; An ideal model.
Tasks: 5 · Theory: 1 · Free lesson

Send motionLet's analyze the rule and apply it in independent tasks.

A pulley changes direction
A wheel and a rope; Pull down to lift up; The rope’s ends.
Tasks: 5 · Theory: 1
Gears transmit rotation
Meshing gears; A chain of directions; Teeth and turns.
Tasks: 5 · Theory: 1

Wheels and sealLet's analyze the rule and apply it in independent tasks.

Wheels, axles and ramps
Wheels and axles; A ramp; Comparable models.
Tasks: 5 · Theory: 1
Printing: repeat a message
One form, many prints; Movable type; Check before the print run.
Tasks: 5 · Theory: 1

Signal and prototypeLet's analyze the rule and apply it in independent tasks.

A signal needs a shared code
A shared code; This lesson’s key; Ask for a repeat.
Tasks: 5 · Theory: 1
A prototype answers a question
A model for a question; Choose the property; Improve and retest.
Tasks: 5 · Theory: 1

Test and selectionLet's analyze the rule and apply it in independent tasks.

A test needs to be fair
Change one factor; Keep every attempt; Limit the conclusion.
Tasks: 5 · Theory: 1
Choose an improvement that fits
Several criteria; Mandatory conditions first; Explain the decision.
Tasks: 5 · Theory: 1

The course consists of chapters and thematic lessons. You can focus on one topic and understand it step by step.

Choose a grid of activities or a route map. Consecutive classes open in order. One lesson may contain tasks from different topics.

Learn at your own pace

Free thematic lessons: 2. Free consecutive lessons: 2. Other classes open with Premium. Access is granted by the parent.

Completed tasks, stars and results are saved in the student’s profile. Hints and explanations help you figure out the answer.