What is the definition of "scientific notation"?
A system of condensing powers of ten.

## Shop Essentials Training

Class Information
 Tooling U classes are offered at the beginner, intermediate, and advanced levels. The typical class consists of 12 to 25 lessons and will take approximately one hour to complete.
 Class Name: Basic Shop Math 110 Description: This class reviews basic fractions and decimals as well as basic triangle and circle geometry relevant to the shop. Prerequisites: arithmetic skills Difficulty: Beginner Number of Lessons: 18 Language: English

Class Outline
• Objectives
• Order of Operations
• Fractions
• Fraction Multiplication and Division
• Decimals
• Decimal Multiplication and Division
• Percents
• Scientific Notation
• Triangle Geometry
• Pythagorean Theorem
• Right Triangle Trigonometry
• Triangle Measurement Applications
• Circle Geometry
• Circle Measurement Applications
• Summary

Class Objectives
• Determine the priority of operations.
• Explain the parts of a fraction.
• Subtract fractions.
• Multiply fractions.
• Divide fractions.
• Identify the relationship of decimals to fractions.
• Subtract decimals.
• Multiply decimals.
• Divide decimals.
• Define percent.
• Convert between decimals and scientific notation.
• Identify the major parts of a triangle.
• Define the Pythagorean theorem.
• State the three trigonometric ratios for a right triangle.
• Find missing right triangle information using the Pythagorean Theorem.
• Find missing right triangle information using the trigonometric ratios.
• Identify the major parts of a circle.
• Identify uses for circular dimensions.

Class Vocabulary

Vocabulary TermDefinition
A triangle containing three angles that each measure less than 90 degrees.
A figure formed at the intersection of two lines.
A portion of the edge of a circle.
A segment connecting two points on a circle.
The figure formed by the group of points that are an equal distance from a point, or center.
The person responsible for the creation of a part program. The part programmer translates the workpiece design into program instructions for the CNC machine.
In a right triangle, the ratio of the side adjacent the angle and the hypotenuse of the triangle.
A representation of a fraction whose denominator is some power of 10.
The expression in the bottom location of a fraction, below the fraction bar.
The distance from one edge of the circle to the opposite end through the center.
An operation that determines how many times a quantity is contained in another.
The quantity by which a number is divided. The divisor resides in the denominator of a fraction.
A triangle with three equal sides.
A number or symbol that indicates the power to which an expression is raised.
In a right triangle, the side opposite the right angle.
A fraction obtained by reversing, or inverting, the numerator and denominator. 4/5 is the inverse of 5/4.
An operation that counteracts or undoes another.
A triangle with two equal sides.
The least common factor shared by two or more numbers that is used to find equivalent fractions.
An operation that describes the repetitive addition of numbers.
The expression in the top location of a fraction, above the fraction bar.
A triangle with one angle that is greater than 90 degrees.
One part in a hundred; the amount per hundred.
The result of a multiplication operation.
A mathematical rule describing how sides of a right triangle are related. The sum of the square of both sides equals the square of the hypotenuse.
The result of a division operation.
The distance from the center to the edge of a circle.
The relationship between two quantities expressed as a fraction.
A triangle containing an angle that measures exactly 90 degrees.
A triangle with no two equal sides.
A system of condensing powers of ten.
In a right triangle, the ratio of the side opposite an angle and the hypotenuse of the triangle.
In a right triangle, the ratio of the sides opposite and adjacent to the angle in question.
The boundaries of allowable variation from a specified dimension.
A three-sided figure determined by connecting three points that are not part of the same line.
A ratio that describes a relationship between sides and angles of triangles.
The point where the two sides of an angle or triangle intersect.