Spectrum Writing Grade 1helps young learners improve and strengthen their writing skills as they learn: Main idea. Cause and effect. Comparison. Based on proven curriculum used in classrooms nationwide, this workbook features: A variety of activities to build skills and comprehension while preparing young learners for standardized tests. Practice skills and topics that encourage creativity and build confidence by making writing fun. Easy-to-understand directions. Perforated pages for easy removal.School Specialty Publishing is the author of 'Spectrum Writing, Grade 1 (McGraw-Hill Learning Materials Spectrum)', published 2002 under ISBN 9781561899319 and ISBN 1561899313.