by Edward Einhorn
In A Very Improbable Story, Ethan wakes up one morning to find a cat perched on his head, and is stunned when he discovers that not only does the cat talk, but it refuses to jump down until Ethan beats him in a game of probability. The two then play a series of probability games that are told in quirky text and offbeat but appealing illustrations.
At first, Ethan is simply guessing at solutions, but eventually he begins to consider odds and outcomes and does much better.
We don't love this book, but it could be good for
probability lessons. The probability scenarios are
kid-friendly and the oil paintings add a great deal to the storyline. If you do
plan to use this title for teaching probability, we recommend you stop
and discuss the scenarios as you come to them. The book moves fairly quickly, and kids may just listen to the story
and miss the math lesson entirely.
Interest Level: Gr. 2-5 Grade Equivalent: 1.5 Lexile Measure: 470L
Here's a peek inside A Very Improbable Story -- to give you an idea of what the interior illustrations look like as well as the quantity of text per spread. The first spread occurs at the beginning of the book, when the boy wakes up and is startled to find a cat perched on his head---and not just any cat, a talking cat. The second spread depicts a probability scenario with coins. This is early on in the book, when the boy is simply guessing and hoping to get the right answer, not considering odds and outcomes.
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If you are reading this when teaching probability, you may want to slow it down, stopping in points to work out the scenarios with your class. It's a great resource, but not all learners will be able to follow the verbal explanation. To make sure the probability makes sense, you can 'play out' the scenarios with your class as you come across them in the book. To do this, you need:
- 10 pairs of socks--each with different patterns and/or colors
(or if you don't want to bring in actual socks, print 10 copies of these sock
illustrations, each on different colored paper)
- a jar with 200 total marbles -- 25 white, 25 yellow, 25 green, and 25 blue
- a bag of candy or cereal with 5 different varieties (whether it be shapes, colors...)
can also do the coin jar, but the book doesn't really give all the
details for that scenario (how many coins in the jar of each amount,
etc) so we skipped that one. You can also use the same items (the
socks, the marbles, etc) with
different amounts to create new probability scenarios.
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