To put on “The Fifty Leaping Lizards Show!,” you need fifty star-struck leaping lizards. Where will they all come from? The first five are found lounging in bunk beds, but the next five arrive in theatrical style, riding unicycles and juggling. The next five are speed-demons in race-cars, followed by five more in a hot-air balloon. Colorful graphics keeps track of the count, first by showing how counting by 5s works, and then showing how counting by 10s is related: Kids can easily see how each group of 10 lizards divides into two groups of 5. Will there be enough lizards by show time?
Counting by 5s and 10s is an important skill that helps children master multiplication facts, tell time, and count money.
Illustrated by JoAnn Adinolfi.
Start with 50 playing blocks and ask your students (or child) to create groups of 5. How many groups of 5 are there? Then put the groups of 5 together in pairs to make groups of 10. How many groups of 10 are there? This can also be done using smaller objects such as buttons or pennies.
The 5s & 10s Travel Game: While riding together in a car or on a bus, ask each player to pick a color. Each car you see of that color is worth 5 points. The first player to get 50 points wins. Play again, changing the rules so each color is worth 10 points.
With your students (or child) figure out how many figures and toes are in the group. Try counting first by 5s and then by 10s.