Jayne Robbins

Your students will ease into the world of coordinates (ordered pairs) by plotting small shapes on a grid. Then they'll build up their plotting stamina by mapping larger shapes. They'll be rewarded by being able to make this pleasing symmetrical snowflake image.

I came up with this activity in response to the second grade Common Core Math Standard 2.G.A.2: Partition a rectangle into rows and columns of same-size squares and count to find the total number of them. The rectangles on these four activity pages can be divided exactly into 1" rows and columns. Your students will use a ruler to mark the edges into inches, then joins the marks to create rows and columns. They will then count the squares to find the total number. There are many sub-skil

This PowerPoint will guide your students through the process of partitioning a rectangle into same-size squares using a ruler to measure columns and rows in inches. Most of it is animated and proceeds without mouse clicks. Follow up this presentation with the activity sheets posted separately: Partition A Rectangle Into Same-Size Squares: Four Activity Pages.