Dart teaching course

The teaching process of rotating darts is as follows:

1. Take out the corrugated board, measure 30cm from both ends to the middle, and mark it. After marking, use a utility knife to cut along the line, because corrugated paper can be cut from many directions when it is thick.

2. Measure the width of corrugated board with a steel ruler, and mark the measured width in the middle of corrugated board.

3. Cut the double-sided adhesive tape into small pieces and paste it at the mark in the previous step. Align two corrugated boards with double-sided adhesive tape and stick them together.

4. Take out the straws and cut all the straws as shown in the figure. Stick corrugated cardboard with wide transparent adhesive, and stick each cardboard in the same direction to fix the straw.

5. Place the cut straw on the narrow edge of corrugated board and fix it with adhesive tape. After sticking the straws, the corrugated board behind each straw is squashed downwards, and it is finished.