A list is a row of numbered boxes, and the first is number zero.
A list is a row of numbered boxes. Things kept in order make a list.
Each box has a place number called an index, and the first box is number zero.
So the third box is number two, and five boxes run from zero up to four.
A list can grow: a new box joins at the end, and the old boxes keep their numbers.
These are some of the questions on the sets. The printable sheets have more and an answer key.
Box 0. The first box is number zero.
4. Five boxes go zero, one, two, three, four.
The cloud. Box 0 is the star, box 1 the moon, box 2 the sun and box 3 the cloud.
1. The moon is the second treasure, so its index is one.
5. The old boxes are 0 to 4, so the new one is index five.
Line up five small things in a row, like a coin, a button, a spoon, a sock and a pen. Stick a paper number on each place, starting at zero. Ask a grown-up to say a number, and you hand them the thing at that place. Then swap two things and try again.
Play the Mission: line up five small things in a row, like a coin, a button, a spoon, a sock and a pen, with a paper number on each place starting at zero. Say a number and your child hands you the thing at that place. Then swap two things and try again.
