# Preparing for Algebra by Building the Concepts

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An introductory textbook for students at any age who lack a basic understanding of numbers and elementary arithmetic. Uses hand-on materials and exercises to learn pencil-and-paper arithmetic and certain algebraic manipulation skills, but incorporates calculators for computation-heavy problems of reExample 1: In a circle of radius 5 cm, find the diameter, circumference, and the area of the circle. C = 2kt = (2)(7t)(5 cm). To get a decimal approximation for C, do the following key strokes: 2071 [x]5[=] C =31.416 cm (This is rounded to 3 decimal ... area and circumference, show the substitutions and use a calculator to find the answers correct to two decimal places. ... 7 cm r = C = 7 cm d = 14 cm ( IMnMl cm) =43.98 cm A = Formula: C = 27tr 18ft\ r = C = d = 7tr2 = (it)H cm)2 = 153.94 cm2anbsp;...

 Title : Preparing for Algebra by Building the Concepts Author : Martha Haehl Publisher : - 1997-11

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