I've had such a GREAT response with my original pack of weeks 1-10, and some of you have asked me to upload weeks 11-20... so here they are! As a 4th grade classroom teacher, I’ve found that my students needed extra practice with spiraling mathematical concepts aligned with our Common Core standards. The attached pages may be used as whole class activities, for students to work in partners, sent home for homework, or independent work to be counted as grades. This unit is meant to supplement whatever math textbooks/tradebooks you currently use. The skills include addition/subtraction across zeroes, multiplying 2 and 3 digit numbers, rounding, and place value, prime and composite factors, comparing fractions, adding and subtracting fractions, and division with and without remainders. As a BONUS, I’ve also included 10 assessments that you can use with your students for weeks 11-20! Thanks again and I hope you enjoy this unit!