Making our own hand demo

Hi. This week we began making our own hand demo in Hurumanu 1 (Science + English). Our main learning topic in Science is the human body and its structures and how it works. Such as bones, muscles, organs, and so on. This week we focus on the hands. Firstly, let's learn how to do our hands work?

Our hands can move because there are lots of parts that work together to make it move. They are Bones, Joints, Muscles, Tendons, and Ligaments. 

• Bones in the hand - There are 3 bones in each finger and two in the thumb There are 5 bones in the palm- leading to each finger. Bones provide structure and support.

• Joints in the hand - It's where two bones meet is called a "joint". Joints allow movement between bones.

• Ligaments in the hand - Ligaments attach bones together. They allow movement in certain directions only.

• Tendons in the hand - Tendons attach bone to muscle. Long tendons run from the tip of our fingers down to our muscles.

• Muscles in the hand - There are NO muscles in our fingers. Only in our palm and forearm. The muscles then move our fingers by contracting and relaxing. As the muscle contracts, it pulls on the Tendon, making our finger curl down.

Making our own hand demo:

Step 1: Collect Equipment of the following materials. Set of thread, 2 straws, paper hand, scissors. 

Step 2: Cut a hand shape out of paper.

Step 3: Use straws to make the bones/tendon sheaths of the hand. 3 small pieces of each finger, 2 small pieces for the thumb, 5 longer pieces for carpels (hand bones), and 1 for the main sheath. As you cut each piece stick it on with tape.

Step 4: Attach the end of the thread to the back top of a finger with tape.

Step 5: Collect a needle from the teacher. Thread the needle and put it through each sheath of the finger, and the main sheath. Repeat steps 4 and 5 for each finger and the thumb.

Here's a picture of my own hand demo:

(The yarn represents the joints and the straws represent the bones/tendon sheaths).

Have a nice day!