Please try this FREE set as an introduction to my wide variety of printable Multi-Match game cards. With these cards, students match triangles shown on grids to the area, to calculation cards, or to another triangle with the same area (CCSS 6.G.1). This set is also available as part of a Grade 6 Games Bundle recently featured in th TpT newsletter. ~by Angie Seltzer
Mrs. Gaisford's 3rd graders at Valencia Valley are creating area calculation models. Using models and discovery develops a deep sense of understanding of the math concepts of area before learning formulas. Students are learning that area is the space inside the shape and are using 1" sq units to determine the area of a given polygon.
How to make a pillow sham is a very well executed tutorial from Kate at Worthing Court. It's a big help because she gives the calculation formula, so I'm not standing over the cutting table pondering how wide to make the flange area. (Where's the last set I made? Did I make it three inches wide or four? Or five. Oh, dear.) Also, Kate explains why a batting helps beat the "floppy flange."
Middle school level notes on 3D figures (right rectangular prism, cube, right triangular prism, regular triangular pyramid, and square pyramid), their nets (2D representations), and each figure's formulas for surface area. Includes a construction activity for each figure and a sheet for recording measurements and calculations.
Illustration for UDS Calculation: For example let us suppose 5 equally sized apartments of 1000 sq ft are built on one ground of land which measures 3500 sq ft. The UDS would be calculated as multiplying the total land area with the size of the individual apartment (3500*1000) in this case and dividing the result by sum of areas of all apartments combined in the project which is 1000*5= 5000. Hence UDS = 1000*3500/5000 = 7000 sq.ft.