Blackline Masters - Table of Contents - ednet Mathematics Blackline Masters Grades P to 9 Table of Contents. Please note: Although we have taken care to create all files so that they are as accurate as possible, some files may not print accurately. Computer and printer settings may affect the accuracy of items such as rulers and protractors.[PDF] Blackline Masters - North Slope Borough School District Blackline Masters NC 1 The Days In School chart NC 2 Student Clock NC 3 Number Cards, 1–6 NC 4 Number Cards, 7–12 NC 5 Ladybug Blackline NC 9 Mini Ten-Frames Run several copies of this sheet and cut the ten-frames apart. You’ll need 8–10 frames per month.