Amy and Jack are on vacation. They are visiting Max. It is dark. They cannot sleep. Suddenly, Amy points. Look! she says. What are they? Bats, birds, butterflies, moths? Learn about animals of the night!

You use your brain all the time. It is like a very intelligent computer inside your head. What does your brain look like? What does it do? Come on, let's exercise your brain!

Boost! Vocabulary 1 is the first book in this 4-level series that helps junior learners build vocabulary. Each book contains a Word Booster to help students practice and remember new vocabulary and age-appropriate topics to develop critical thinking and increase motivation.

Boost! Vocabulary 2 is the second book in this 4-level series that helps junior learners build vocabulary. Each book contains a Word Booster to help students practice and remember new vocabulary and age-appropriate topics to develop critical thinking and increase motivation.

Boost! Vocabulary 3 is the third book in this 4-level series that helps junior learners build vocabulary. Each book contains a Word Booster to help students practice and remember new vocabulary and age-appropriate topics to develop critical thinking and increase motivation.

Boost! Vocabulary 4 is the fourth book in this 4-level series that helps junior learners build vocabulary. Each book contains a Word Booster to help students practice and remember new vocabulary and age-appropriate topics to develop critical thinking and increase motivation.