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The Arm micro-lesson

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Learning time​

Kids learn by watching short, engaging video lessons.

How many bones do you think are in your arms? I’ll tell you what, there are actually only three major bones in your arms. Our arm bones connect to our shoulder through our scapula, our shoulder blade. The top bone in our arm is called the humerus and below that, we have two bones in our forearm called the ulna and the radius. The joint in the middle is called the elbow and this is where the bones connect. Our ulna is bigger than our radius and it supports the outside of our arm. The radius, while smaller, supports the inside of arm closest to our thumb. These three bones are thinner in the middle but wider at the ends where they connect.

Examples of 1Question Maths Questions

Answer time

Kids earn more screen time by answering fun educational questions.

Here are some example of questions about this video that kids may be asked in the 1Question app to earn screen time.

  • How many bones are in the arm?

    1) 3
    2) 2
    3) 4
    4) 5
  • The bone at the top of our arm is called the

    1) Humerus
    2) Radius
    3) Ulna
    4) Scapula
  • Which bone in your forearm is bigger?

    1) Ulna
    2) Radius
    3) Humerus
    4) Elbow
  • The arm connects to the shoulder through the

    1) Scapula
    2) Ribs
    3) Spine
    4) Skull
  • The radius and ulna connect to

    1) The elbow and wrist
    2) The elbow and shoulder
    3) The wrist and shoulder
    4) The shoulder and the ribs
  • The humerus connects to

    1) The elbow and shoulder
    2) The elbow and wrist
    3) The wrist and shoulder
    4) The shoulder and the ribs
  • Why are arm bones more likely to break?

    1) They are thinner in the middle
    2) They are wider in the middle
    3) They are the smallest bones in the body
    4) They are fragile
  • How are our arm bones shaped?

    1) Thinner in the middle and wider at the top and bottom
    2) Thinner at the top and bottom and wider in the middle
    3) Flat
    4) Thin the entire length of the bone
  • Why do we have two bones in our forearm?

    1) To be able to twist our wrist palm up and palm down
    2) To make it more stable
    3) Because they are thinner in the middle
    4) Because they are small
  • Which bone in your arm is the shortest?

    1) Radius
    2) Ulna
    3) Humerus
    4) Elbow
  • Which bone supports your thumb?

    1) Radius
    2) Ulna
    3) Humerus
    4) Elbow

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Meet your educator

Our micro-courses are developed and delivered by qualified educators from around the world.

Kerry Wadsley

Kerry Wadsley

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