Showing posts with label foldable. Show all posts
Showing posts with label foldable. Show all posts

Tuesday, August 2, 2011

Types of Roots: A Science Foldable



This foldable is so simple! Fold a regular sheet of copy paper in half hamburger (width-wise) style. Cut the front in half up to the fold line. On one side, draw a fibrous root and on the other a tap root. As a class, we discuss the physical differences while we are drawing them.

Once we are ready to write our information inside, we brainstorm reasons for the differences, benefits and drawbacks of the differences, and examples we’ve come across. I make sure that the students know that fibrous roots are great for erosion control, are able to get shallower water sources, and firmly hold a plant (think of all those weeds you’ve tried to pull!). Meanwhile, a taproot makes it difficult to destroy a plant because even the smallest root bit left behind will begin to regrow. We also look at young seedlings and how many start with a taproot but will develop fibrous roots as it matures.

Parts Of A Tree; A Science Poster



I am always amazed what I learned but was never officially taught. Then, my students come to me, and I sometimes expect them to have the same background information. I am constantly reminding myself that I cannot make such assumptions. The parts of a tree exemplify this. While many students know what a trunk is, they may not know the difference between a limb and a branch or that the top of a tree is called a “crown.”

This is a poster drawn on a regular sheet of copy paper. I have the students freehand a tree while I walk them through it by drawing on the board. Believe it or not, I start with the foliage. Basically, they are cloud-like shapes, but I only do these on one side of the paper. Then, we draw the trunk and roots. At this point, the hardest part begins—limbs, branches, and twigs. I remind my students that most of these will reach upwards (and we discuss why—to help the leaves get as much sunlight as possible). They also become narrower the further they are from the trunk. You will also notice that my model displays one of my favorite art lessons—nothing in nature is a single color! I don’t let my students get away with solid, green foliage. (We don’t have art in our school, but I am an artist; I try to get art lessons in whenever I can!) We talk about where the sunlight is going to hit the leaves the most and color that area a lighter green than where there will be shadows, which will be the darkest green.

This is a quick lesson to ensure that we all have the same background knowledge and can use the same vocabulary.