The first worksheet in Chapter 5, 1-5-0 is an example of a typical worksheet except it has answers and calculations. It also has several worksheet guides. Each question, calculation, answer and guide should be carefully reviewed in order to form a basic understanding of future worksheets. Time spent on thoroughly understanding each item will make future questions easier to answer. The next four worksheets are similar to 1-5-0 and provide the basis for future worksheets.

Worksheet 1-5-1 also has a measuring exercise. The purpose of this exercise is to demonstrate the relationship between dimensions on prints and measurements on actual parts. The exercise simulates a common occurrence in the workplace except the part is generally not made of paper. It must be pointed out that this exercise requires measurements on a sample paper part. It does not call for measurements on the print. Measurements should never be made on prints.

Worksheet 1-5-4 is an exercise on how to read a rule that is graduated in 64 ^th of an inch. This exercise is also helpful when making measurements on machine parts.

Most of the Chapter 5 worksheets include isometric drawings to help visualization. A review of the relationship between the isometric and the orthographic drawing will help improve visualization. Most of the worksheets in subsequent chapters do not have isometric drawings.

The first two worksheets have dimensions with fractions because students without previous experience generally find fractions easier to understand. Most of the remaining worksheets have...