Threading inside the holes

Materials: cardboard, thread any type, toothpick or needle

Make holes on the cardboard piece on both ends length wise as you can see in the picture.

I tied the thread on the tooth pick and gave her to insert. First I gave without toothpick, as i used was woolen thread, it was soft and she found it difficult to insert through the holes. Then when i tied toothpick and gave she could do it better. I told her to insert the thread up and down and finish threading in all holes. She did it with 25 to 30 minutes.