3.MD.D.8 Grade 3 · Measurement and DataSolve real-world and mathematical problems involving perimeters of polygons, including finding the perimeter given the side lengths, finding an unknown side length, and exhibiting rectangles with the same perimeter and different areas…Common Core State Standards for Mathematics, as adopted in the Massachusetts Curriculum Framework for Mathematics (2017), Grade 3.
Play the game: Fence and Fieldfree, no sign-up →Lengths, areas and volumes are built from the same dots, one more direction each time. Measuring means laying real units end to end with no gaps.
Every page is free and open — nothing to install, no account, and it works on a phone or a classroom board. Every number has its own color: 1 red, 2 orange, 3 yellow, 4 green, 5 blue, 6 purple, 7 brown, 8 pink, 9 cyan, and a number is that many colored dots.
3.MD.A.1Tell time to the minute; time intervals hopped on a number line3.MD.A.2Litres, grams and kilograms: measure, estimate, one-step problems3.MD.B.3Scaled picture and bar graphs, where one picture stands for several; how many more and fewer3.MD.B.4Measure to the nearest half and quarter and show it on a line plot3.MD.C.5Area: counting unit squares that cover a shape3.MD.C.6Measure area by counting unit squares, in small squares and in big squares3.MD.C.7Area by multiplying side lengths; area shows the distributive property; split shapes into rectanglesColorMyMath · getridoftheteacher.com · every number has its own color, and a number is that many colored dots. Matching a game to a standard is a judgement call; the official text is at doe.mass.edu.