Strategies for estimating area and perimeter with unit squares

0/3
Intros
Lessons
  1. Estimating area for triangles (using unit squares)
  2. Estimating area for shaded in portions of unit squares
  3. Example for estimating shaded area on a grid
0/8
Examples
Lessons
  1. Comparing perimeter and areas of unit square rectangles
    1. Fill in the table for each rectangle with proper units (cm)
      Calculating and Estimating Area and Perimeter
    2. Using the answers from part a), answer the following questions with the letter of each rectangle:
      1. Which rectangle has the biggest perimeter? ____
      2. Which rectangle has the biggest area? ____
      3. Which rectangles have the same perimeter? ____
      4. Which rectangles have the same area? ____
  2. Estimating the area of a shaded figure using half unit squares
    Estimate the area covered by the shaded figure.
    Remember that: Calculating and Estimating Area and Perimeter and Calculating and Estimating Area and Perimeter
    1. Calculating and Estimating Area and Perimeter
    2. Calculating and Estimating Area and Perimeter
  3. Estimating the area of a shaded figure using halves of unit square doubles
    Estimate the area covered by the shaded figure.
    Remember that: Calculating and Estimating Area and Perimeter and Calculating and Estimating Area and Perimeter
    1. Calculating and Estimating Area and Perimeter
    2. Calculating and Estimating Area and Perimeter
  4. Estimating the area of a shaded figure with different proportions of unit squares
    Approximate the area of the shape by filling out the table.
    1. How many of each type of square is shaded in?
      Calculating and Estimating Area and Perimeter
    2. What is the approximate area if each square represents 1m2?
      The values of each type of square shaded in are listed:
      1. whole = 1
      2. half =1/2
      3. >> half = 1
      4. << half = 0