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HYDRA-FLOW gameplay preview
Learn and play Logic
Grades 4-5No account

HYDRA-FLOW

Set three valves, conserve every drop, and match exact garden needs across eight cheerful irrigation missions.

Click valves to set water amounts, then test the flow
Learning companion

Turn one round into a learning session

Develops foundational engineering and systems-thinking skills

Logic & Problem SolvingGrades 4-5 starting point
Before play

Say a simple first plan before moving. Decide what evidence would show that the plan needs to change.

During play

When a move fails, find the first step where the result differed from the plan and revise from there.

After play
  • What was your first plan, and where did you revise it?
  • Which clue helped you choose between two possible moves?
Continue offline

Algorithm Flowchart for Kids

Use Algorithm Flowchart for Kids to show the same skill away from the screen with drawing, labels, examples, or written reasoning.

Support

Plan only the next two moves, test them, and add more steps after the route or rule is clear.

Extend

Find a second successful strategy and compare its number of moves, risks, or decision points.

These are flexible practice ideas, not a grade, diagnosis, or placement test.
Teacher lens

Possible standards-informed practice

These references identify a possible practice connection, not curriculum alignment. Use the evidence prompt to check what the learner can explain away from the score.

Not an assessment or alignment claim
CCSS MP1 Mathematics | Grade K-5 site range

Make sense of problems and persevere in solving them.

A logic puzzle can create an opportunity to plan, test, notice a mismatch, and revise.

Look for this evidenceAsk for the learner's first plan, the point where evidence changed that plan, and one revision they would try next. A score alone is not evidence.

Confirm your school, district, province, state, or country requirements before using any activity in a formal plan.

Teacher Evidence Board
Game guide

How to play

  1. 1Read how many drops each garden needs
  2. 2Tap each valve to set its water amount
  3. 3Use every reservoir drop without wasting water
  4. 4Balance all eight irrigation missions
Quick answers

Questions about HYDRA-FLOW

Is HYDRA-FLOW free to play?

Yes. HYDRA-FLOW can be played for free in a web browser without installing an app.

What skills does HYDRA-FLOW practice?

Develops foundational engineering and systems-thinking skills

Can kids play HYDRA-FLOW on a tablet?

Yes. On mobile or tablet, kids can use: Tap each valve, then test the flow.

Keep practising
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