Do your students have gaps in their measuring length skills? This complete collection of 18 worksheets (or a self-guided station) steps students from non-standard to standard length measuring, including centimeters, inches, broken ruler, and perimeter, as well as estimating to closest 1/2 inch, 1/4 inch, and 1/8 inch. How can I use this product?Two ways: print out the worksheets and it's easy to differentiate as the worksheets progress in difficulty. Or, you can put the pages into sheet protecto