A String of Numbers
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This colorful, unique necklace is a great way to provide a visual example of number sequences.
| Prep Time: About 1 hour | |
| What you need: | |
| Paper and pencil
Calculator Tape Elastic beading thread Pony beads in several colors | |
| Seasons: Year round | |
| Materials: beads, string | |
| Instructions: | |
| 1. | Have your child experiment with a few different number sequences by writing them down on paper. For a medium-length necklace, the sequence should include 8 to 10 numbers that add up to between 125 and 160. One of our favorites is the Fibonacci sequence ( click here for more on Fibonacci numbers). For inspiration, you'll also find a few possible patterns listed below. |
| 2. | Next, your child needs to figure out how many bead colors to use. To do this, he should divide the number of numbers in his favorite sequence by a number that comes out evenly. This ensures that you end the necklace with a different color than the one you started with. If there are 8 numbers in your child's sequence, for instance, he could use 2, 4, or 8 different colors. |
| 3. | Stick tape to one end of the elastic thread to keep the beads from falling off when he strings them. |
| 4. | Now it's time to thread on beads, changing the color for each number in the sequence. For the Fibonacci sequence, you could string on 1 blue bead, 1 orange bead, 2 green beads, 3 pink beads, 5 yellow beads, 8 blue beads, 13 orange beads, 21 green beads, 34 pink beads, and finish with 55 yellow beads. |
| 5. | Remove the tape, tightly tie together the thread ends, trim them, and the necklace is ready to wear. |
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