Loose Weaving is a very successful and fun one day project for 4th or 5th graders who have experience weaving. You can weave with any paper, I chose to use up some of my painting mats and some painted paper I used for a past project.
Everyone approaches this project differently, this is how I teach it... Start with a horizontal and vertical strip perpendicular, with the horizontal strip on top. (I do teach warp and weft, but too confusing to use those terms for this weaving lesson).
Next, add two more vertical strips, both on top of the horizontal.
Next, Add a horizontal strip on top and bottom of the original horizontal strip by simply lifting the center vertical and sliding it in snug. Once students get this far, the strips are starting to hold themselves together. Then they continue with no trouble, following the rules of weaving... over, under, over, under.... and under, over, under, over! Have fun!