SPACE ACADEMY · TRY, THINK, PLAY

Class 1: Time travellers

Connect clock hands, calendars and elapsed-time clues at the selected challenge level.

Try a quick challenge

Just a quick try. Not saved; no game rewards.

ExploreClocks and elapsed time

How many minutes pass between Comet's two pictured clocks?

Before and After1236912369BeforeAfter
  1. 120 minutes
  2. 75 minutes
  3. 60 minutes
  4. 90 minutes
Need a hint?

Move forward from the first minute hand to the second; do not compare the hour numbers alone.

Answer & method
Answer C: 60 minutes

Moving forward from 6:00 to 7:00 takes 60 minutes.

Try more in game

ReasonClocks and elapsed time

Ovi sets a clock to 11:30. Which clock shows it?

  1. Picture A12369
  2. Picture B12369
  3. Picture C12369
  4. Picture D12369
Need a hint?

Match the long hand to minutes, then check the short hand.

Answer & method
Answer C: Picture C12369

The correct clock has its hands at 11:30.

Try more in game

StretchClocks and elapsed time

What time is 20 minutes after 5:35?

  1. 6:55
  2. 5:55
  3. 4:55
  4. 5:15
Need a hint?

Count on, and move to the next hour after 60 minutes.

Answer & method
Answer B: 5:55

20 minutes after 5:35 is 5:55.

Try more in game
For grown-ups

Ideas to practise

  • Clocks and elapsed time. Separate hours and minutes. There are 60 minutes in one hour.
  • Calendars. Read the weekday headings. A week has seven days; count intervals, not both endpoints.

A game mission has 8 untimed questions. Only the game saves choices and hints. A finished mission earns one launch charge and participation towards the Camera mast in Mars Rover Rescue. The chapter goal is 8 different questions in finished sets; hints and wrong answers count as participation, not mastery. Some craft systems link more than one chapter.

Choose a level

Explore

Foundations: read a representation and practise the underlying idea.

  • Read an analogue mission clock
  • Choose the clock for a time
  • Follow a short rover schedule
  • Find minutes passed between two clocks
  • Name the day or month before, after or nth
Play Explore

Reason

Paper-style reasoning: connect clues, interpret a diagram or work backwards.

  • Choose the clock for a time
  • Follow a short rover schedule
  • Find a weekday on a calendar
  • Find minutes passed between two clocks
  • Find the time after or before a short wait
Play Reason

Stretch

Higher-order practice: link conditions, test statements and avoid a tempting wrong method.

  • Read an analogue mission clock
  • Choose the clock for a time
  • Follow a short rover schedule
  • Find a weekday on a calendar
  • Find minutes passed between two clocks
  • Name the day or month before, after or nth
  • Find the time after or before a short wait
Play Stretch

Levels change representations, clues and conditions, not just the numbers. These are practice formats, not validated exam-equivalent difficulty.

Using the feedback

Learning reports distinguish hinted answers from independent first choices. They consider up to 20 recent different, unhinted questions per skill and level, and wait for at least five before suggesting extra practice. Repeating the same question does not add evidence. Reports are practice evidence, not IQ scores, diagnoses, ranks or predictions of competition results.

Ask the learner to explain a drawing or check with objects too. Choose Explore or an earlier chapter when a step feels too large.

Sources & limits

The grade topics use SOF IMO Class 1 published topic syllabus as their primary reference. The SOF sample and CREST previous-year paper below informed representations and reasoning demands. Providers have different topic boundaries; their syllabi are not interchangeable.

Questions, diagrams, picture choices, hints and explanations are original Otterly work, not copied paper questions or publisher artwork. No Olympiad provider is affiliated with or endorses Space Academy. This is not complete exam preparation; follow classroom teaching and check the current official syllabus too. Independent educator review is still needed for difficulty and breadth.

Content and coverage notes. To report a confusing question, describe the grade, chapter, level and question on the contact page. Do not send children’s personal information.

Private, local saves

Game progress stays only in this browser, in three anonymous explorer slots. Clearing site data or closing a private session may remove it. Download a private backup from Help & saves; there is no cloud sync. The game checks saves before play and stops on save failures rather than pretending progress was saved.

These page examples never change a saved game. Game links carry question settings, not a learner’s answers. There are no names, school details, public profiles, chat, analytics or advertising SDKs in the game. Grown-up guidance · Privacy

Original Otterly practice, not an official exam. Game progress stays on this browser.