Advantus E-Z Grader Chart User Manual

1. Introduction

The Advantus E-Z Grader Chart is a compact and portable tool designed to simplify the grading process for educators. This manual provides essential information on how to effectively use and maintain your E-Z Grader Chart to accurately calculate percentages for student assessments.

2. Setup

The Advantus E-Z Grader Chart requires no complex setup. It is a ready-to-use slide rule. Familiarize yourself with the two main components: the outer sleeve and the inner sliding chart.

Figure 2.1: Front of the E-Z Grader Chart with instructions.

The front of the grader displays the "THE E-Z GRADER" logo, basic instructions, and a scale for "NUMBER OF PROBLEMS WRONG" and "GRADE". The top section indicates "TOTAL NUMBER OF PROBLEMS".

3. Operating Instructions

Using the E-Z Grader Chart is straightforward:

1. Determine Total Problems: Identify the total number of problems on the test or assignment you are grading.
2. Set the Arrow: Slide the inner chart until the arrow at the top points to the total number of problems on your test. The front side of the grader handles up to 50 problems, while the reverse side handles up to 95 problems.
3. Find the Grade: Locate the "NUMBER OF PROBLEMS WRONG" column. Find the number of incorrect answers on your student's paper.
4. Read the Percentage: Directly across from the number of problems wrong, read the corresponding percentage in the "GRADE" column. Grades are rounded off to the nearest whole percentage, giving the benefit of one-half.

Figure 3.1: E-Z Grader Chart in operation, demonstrating how to align the total number of problems with the grade scale.

This image illustrates the process of aligning the total number of problems (e.g., 20) with the corresponding grade scale. For example, if there are 20 total problems and 1 is wrong, the grade is 95%. If 2 are wrong, the grade is 90%.

Figure 3.2: Reverse side of the E-Z Grader Chart with additional information.

The reverse side of the grader provides information on how the E-Z Grader simplifies grading, including saving time, offering freedom to use any number of problems (not just 10 or 25), and eliminating calculation errors. It also lists company contact details and product availability.

4. Maintenance

The Advantus E-Z Grader Chart is designed for durability and requires minimal maintenance. To ensure its longevity:

• Keep the chart dry and away from liquids to prevent damage to the paperboard material.
• Clean with a soft, dry cloth if necessary. Avoid abrasive cleaners or excessive moisture.
• Store in a flat position or a protective sleeve to prevent bending or creasing.

5. Troubleshooting

While the E-Z Grader Chart is simple to use, here are some common issues and their solutions:

• Incorrect Grade Reading:
  • Ensure the arrow at the top is precisely aligned with the total number of problems on your test.
  • Verify you are reading the grade directly across from the correct "NUMBER OF PROBLEMS WRONG".
• Slider Sticking:
  • Check for any debris or foreign objects caught within the sliding mechanism.
  • Ensure the chart is not bent or warped, which could impede smooth movement.
• Damage to Chart:
  • If the chart is significantly damaged (e.g., torn, heavily creased), its accuracy may be compromised. Consider replacing the unit.

6. Specifications

7. Warranty and Support

Advantus is dedicated to providing high-quality products. For any inquiries or support regarding your E-Z Grader Chart, please contact The Original E-Z Grader Corp. directly:

• Address: BOX 23698, CHAGRIN FALLS, OHIO 44023
• Phone: 1-800-732-4018
• Website: www.ezgrader.com

The Original E-Z Grader products have been available from school supply dealers and stores since 1952, reflecting a long-standing commitment to quality and ease of use for teachers.