The lemonade problem by Jennifer Oxley and Billy Aronson
Peg + Cat series. Candlewick, 2017. ISBN 9781536200614
(Age: 3-6) Themes: Problem solving. Girls. Cats. Small business.
Mathematics. Peg + Cat is a popular animated cartoon series
for pre-schoolers that features a little girl and her indigo cat
working on mathematical challenges using their problem-solving
skills. Through their series of picture books and television
programs, Jennifer Oxley and Ben Anderson's goal is to encourage
pre-schoolers' curiosity about maths in their daily lives and
creatively solve everyday problems.
In The lemonade problem, Peg and Cat decide to start a small
business selling ice-cold lemonade to people passing buy. Instead of
coins, the little girl decides that one cup costs ten marbles. Peg
always keeps her special marble under her hat. Decorated with
balloons and bunting they eagerly wait for their first customer. Can
the young reader see what is missing? After the teens arrive on
their skate boards, they bargain Peg down on her prices until 1 cup
costs two marbles. Unfortunately, Peg forgets the cups and Cat is
sent off to trade cookies for them. Their friend Viv even draws a
bar graph to help Cat understand the maths problem. More exciting
exchanging occurs as Cat's focus becomes diverted with dancing and
red peppers. Of course, just as Cat arrives to save the day, the
weather changes and no-one wants their cold drinks. As the story
line twists and turns, Peg and Cat use their problem solving skills
to work on a better solution, manage their business and then all is
right in their world.
Oxley and Aronson's characters are sketched with pencil on paper
first with simple shapes and lines drawn on a bright patchwork town
that stands out from the graph paper backgrounds. Mathematical
symbols, signs and shapes add interest, as the concepts of comparing
numbers and reading bar graphs are revealed intrinsically. The Peg
+Cat series have a 'transmedia approach' just right for the
preschool audience, with enjoyable books, animated cartoons and an
interactive games website.
Rhyllis Bignell