How do you play the ruler game?

How do you play the ruler game?

Move your mouse (or slide your finger on a touchscreen device) over the ruler image until the green bar reaches the mark for the displayed measurement. To check your answer, click on the ruler (or lift your finger on a touchscreen device). For each correct answer, you will be awarded points.

How do you find the error on a ruler?

More “precise” measurements can be made on the first ruler. The greatest possible error of a measurement is considered to be one-half of the measuring unit. If you measure a length to be 4.3 cm. (measuring to the nearest tenth), the greatest possible error is one-half of one tenth, or 0.05.

Where is 3/8th on a ruler?

The very first line on the left hand side of the ruler is the 1/16 of an inch mark. Between 0 and 1 inch, there are marks that denote 1/16, 2/16 (or 1/8), 3/16, 4/16 (or 1/4), 5/16, 6/16 (or 3/8), 7/16, 8/16 (or 1/2), 9/16, 10/16 (or 5/8), 11/16, 12/16 (3/4), 13/16, 14/16 (or 7/8), 15/16, 16/16 (or 1) of an inch.

How do you teach a ruler skill?

How to Teach Easy Ways to Read a Ruler

  1. Hold the ruler up and point out the line markings.
  2. Trace around all sides of a ruler on a piece of paper to create a rectangle the same size and shape as the ruler.
  3. Hand each child a sheet of paper with lines of various inch lengths drawn on the paper.

Where is 5/8th on a tape measure?

When the tape divides the inches into eighths, 5/8 inch is the fifth mark on the tape from the left side. If the tape divides the inches into 16ths, then 5/8 inch is the 10th mark.

How do you read CM?

Each centimeter is labeled on the ruler (1-30). Example: You take out a ruler to measure the width of your fingernail. The ruler stops at 1 cm, meaning that your nail is precisely 1 cm wide. So if you counted five lines from 9 cm, for instance, you’d get 9.5 cm (or 95 mm).

What is accuracy of a ruler?

The limit of accuracy of a ruler is indicated by how “precisely” you can read the length on that ruler’s scale—that is, how well you can estimate between the marks. On the portion of the ruler shown in Figure1, the distance between the closest marks is 0.1 cm.

Which ruler is more precise?

Precision of Measuring Tools and Significant Figures For example, a standard ruler can measure length to the nearest millimeter, while a caliper can measure length to the nearest 0.01 millimeter. The caliper is a more precise measuring tool because it can measure extremely small differences in length.