Teaching Resource

Let’s Cooperate Code Cracker – Middle Years

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17 pages (PDF)|This resource is suitable for Grades: 3 - 4

A whole class game including a collection of 6 activities which students need to solve to reveal numbers to combine for a lock combination.

Start your classrooms school year with a bang and help students introduce themselves to each other with the Let’s Cooperate Code Cracker! Students need to work together on 6 tasks to reveal 6 numbers to crack a lock combination. The groups are then presented a final riddle to help them arrange their code in the right order to help them succeed in their mission. Get a 6 digit lock or 2X 3 digit locks and a lockable box to hide a reward or message for students to compete for.

Run this activity as a timed rotation system for six groups on six activities or create it as a race to the finish. As previously seen with Teach Starters, Marvin Measurement’s Treasure Box and Christmas Code Cracker, students love working together on the variety of small group tasks, where students need to communicate and cooperate together to help each other succeed.

This teaching resource has a PDF that includes teacher instructions, activity answers, activity templates, task cards. Also available in lower and upper year levels.

Make sure you visit the links below and download the additional resources.

Activities include:

  • Start Poem
  • Ancient Code Wheel
  • Illustration Treasure Hunt – (download 5X Inference Scenario Posters below).
  • Times of the Day – (download Informal Time of Day Jigsaw Puzzle below).
  • Rooster Riddle
  • Science Class – (download The Science of Independent Learning Poster).
  • Pirate Voyage
  • Finishing Riddle

Other resources included:

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Comments & Reviews

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  • Raina Laurie

    Thanks for the resource.
    A quick question about the ‘Ancient Wheel Puzzle’. In the instruction it say ‘Work with your team to figure out the three planet names and which wheel they fit on.’ I can see there is a clue (e) to put Jupiter on the small wheel however the amount of blank tile space don’t really match the amount of letters required for each word. The blank spaces seem haphazard on all the wheels. Is this the way it’s meant to be?

    Comment by Raina Laurie on January 23, 2019 at 11:49 am


    • Royce (Teach Starter) Royce (Teach Starter)

      Hi Raina, thank you for contacting us. You are correct in noticing the E in the template being there to set where Jupiter goes. I have noticed that the font is incorrect and that there is an E tile that should not be there, so I will fix that now. The letters are suppose to fill in the blank spaces that do not currently have blank rock tiles on them. The letters are at random on the wheel as it is not required to have them in a straight letter formation because the need is only to line the letters vertically in a way that reveals the number one. The idea is for a group to work together to figure out the planets that best utilise the tiles they have. If you check out the cheat sheet on page 7 of the PDF, it will also help guide you to how the letters are to be placed. If you need any more assistance, please do not hesitate to contact me.

      Official comment by Royce (Teach Starter) on January 23, 2019 at 12:36 pm


  • Raina Laurie

    This makes sense now. Thank you for explaining it.

    Comment by Raina Laurie on January 23, 2019 at 10:02 pm


    • Royce (Teach Starter) Royce (Teach Starter)

      Great! I hope your class has a great time with these activities.

      Official comment by Royce (Teach Starter) on January 25, 2019 at 8:04 am


  • Jessica Hennah

    The attachment I downloaded seems to be missing:
    5 Inference Scenario Illustrations
    Informal Time of Day Jigsaw Puzzle

    Is this correct?

    Comment by Jessica Hennah on February 2, 2019 at 7:29 pm


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Resource Updates

  • Jupiter tiles of Ancient Code Wheel have all been made singular. Letter tile hint has been removed so all need to be added to the blank spaces without blank tiles.

    Change by Royce (Teach Starter) 23rd Jan

  • Jupiter tiles of Ancient Code Wheel have all been made singular. Letter tile hint has been removed so all need to be added to the blank spaces without blank tiles.

    Change by Royce (Teach Starter) 22nd Jan

  • Updated 'truly' on page 3

    Fix by Jill (Teach Starter) 19th Jan

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