then to Challenge

and collectors ages 4 and up

multilevel elementary science series that introduces scientific concepts using history as its guide

special features in each book include biographical information on interesting people as well as fun facts to make the subject more engaging

discussion questions

Singapore Math Sprints 4 "chemistry" then to ChallengeReady, set math! Boost your students fluency with Singapore Math Sprints: a proven, engaging method designed to reinforce concepts, strengthen recall, and build crucial mental math skills. Designed to integrate with any curriculum or educational setting (but built on the rigor of Singapore Math and aligned to Dimensions Math), sprints transform math practice into an exciting challenge, encouraging students to surpass their personal bests. What is a