are a great way for students to learn critical thinking skills such as multiplication and division with fractions and decimals, probability, statistics, geometry, and more through a variety of learning activities that are both fun AND educational! For more than 20 years, Spectrum has provided solutions for parents who want to help their children get ahead, and for teachers who want their students to meet and exceed set learning goals—providing workbooks that are a great resource for both homeschooling and classroom curriculum.