You start on square 1. Count on as many squares as the die shows. Touch each square as you go, then you will not miscount.
If you land at the foot of a ladder, you climb up. If you land at the top of a slide, you slide down. On a star square, move as many squares ahead or back as it says.
You only jump once - you stay on the new square. Write it down, the next roll counts on from there.
Example
For parents
What does this exercise practice?
Chutes and ladders practices counting on and adding up to 20 and then looking a number up - arithmetic with a second step.
Common pitfalls
The starting square often gets counted as well. But the first step you count is already the square after it.
How to practice at home
Play a real game of chutes and ladders and count out loud on every turn; whoever lands on a ladder says in advance where they will come out.