Year 9 Being curious

  • 1 Step 2 Step
    problem

    1 step 2 step

    Age
    11 to 14
    Challenge level
    filled star filled star empty star

    Liam's house has a staircase with 12 steps. He can go down the steps one at a time or two at time. In how many different ways can Liam go down the 12 steps?

  • Think of Two Numbers
    problem

    Think of two numbers

    Age
    11 to 14
    Challenge level
    filled star filled star empty star

    Think of two whole numbers under 10, and follow the steps. I can work out both your numbers very quickly. How?

  • Sending a Parcel
    problem

    Sending a parcel

    Age
    11 to 14
    Challenge level
    filled star filled star empty star

    What is the greatest volume you can get for a rectangular (cuboid) parcel if the maximum combined length and girth are 2 metres?

  • Square coordinates
    problem

    Square coordinates

    Age
    11 to 14
    Challenge level
    filled star filled star empty star

    A tilted square is a square with no horizontal sides. Can you devise a general instruction for the construction of a square when you are given just one of its sides?

  • Two's company
    problem

    Two's company

    Age
    11 to 14
    Challenge level
    filled star filled star empty star

    Seven balls are shaken. You win if the two blue balls end up touching. What is the probability of winning?

  • Cosy corner
    problem

    Cosy corner

    Age
    11 to 14
    Challenge level
    filled star filled star empty star

    Six balls are shaken. You win if at least one red ball ends in a corner. What is the probability of winning?

  • Speeding up, slowing down
    problem

    Speeding up, slowing down

    Age
    11 to 14
    Challenge level
    filled star filled star empty star

    Experiment with the interactivity of "rolling" regular polygons, and explore how the different positions of the dot affects its speed at each stage.

  • Twisting and Turning
    problem

    Twisting and turning

    Age
    11 to 14
    Challenge level
    filled star filled star empty star

    Take a look at the video and try to find a sequence of moves that will untangle the ropes.

  • Opposite vertices
    problem

    Opposite vertices

    Age
    11 to 14
    Challenge level
    filled star filled star empty star

    Can you recreate squares and rhombuses if you are only given a side or a diagonal?

  • What numbers can we make now?
    problem

    What numbers can we make now?

    Age
    11 to 14
    Challenge level
    filled star filled star empty star

    Imagine we have four bags containing numbers from a sequence. What numbers can we make now?