What is the area sampling method?
The area sampling method is a method for estimating numbers of irregularly scattered objects. It works by dividing a region into sub regions, for example by imposing a grid and then counting or estimating numbers in a random sample of sub regions. One of the primary applications of cluster sampling is called area sampling where the clusters are townships, city blocks, or other well-defined geographic sections of the population (Britannica).
One of the reasons for writing this unit is to be able to help my second language learners develop their mathematical skill in estimation. The students will learn the language of math while increasing their fluency and reading comprehension. Once students gain math concepts while developing their English in the academic area, they will be empowered with the knowledge and the ability to solve mathematical related problems in their daily lives. The key concepts are on place value, representation of numbers and expanded notation, comparison, estimation, ordering, rounding and compatible numbers.
Based on the State standards the following objectives will be met on the first nine weeks of school (first quarter): Math 5.1A Use place value to read, write, compare and order whole numbers through the 999,999,999,999 in standard and expanded form. According to the National Council of Teachers in Mathematics Standards, students from Grades 3-5 should be able to compute fluently and make reasonable estimates. The students should be able to develop and use strategies to estimate the results of whole numbers computations and to judge the reasonableness of each result. They should be able to use strategies to estimate computations involving fractions and decimals in situations relevant to students' experiences.
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