Unit 7, Lesson 3-- Measurement to the Fourth of an Inch

Lesson 3--  Measurement to the Fourth of an Inch

Introduction

Hello Mathematicians! Today we will be learning about how to measure using one- half and one- fourth measurements.

Take a look at this ruler.  Count aloud the increments marked by fourths:

0/4, 1/4, 2/4, 3/4, 4/4, 5/4, 6/4, 7/4, 8/4, 9/4, 10/4, 11/4, 12/4

What do you notice about the numerators?  What do you notice about the denominators?  how are the whole numbers written as fractions?  Jot down your thoughts in your math notebook.

Video

Interactive

Directions:

  • Choose at least one activity from the choice board below.
  • If you do not have a ruler with inches, you will need to do Choice 3.
Measurement Choice Board

Choice 1:  Indoor Scavenger Hunt Links to an external site.

Indoor Scavenger Hunt.pptx Download Indoor Scavenger Hunt.pptx

If you have a ruler with inches available, practice measuring to the nearest ¼ inch by completing this scavenger hunt.

  • Click the link above, and make a copy.
  • Enter your measurements on the slide, or copy the chart into your math notebook.

 

 

Choice 2:  Nature Walk Links to an external site.

Nature Walk.pptx Download Nature Walk.pptx

If you have a ruler with inches available, practice measuring to the nearest ¼ inch by completing this nature walk.

  • Click the link above, and make a copy.
  • Enter your measurements on the slide, or copy the chart into your math notebook.

 

 

Choice 3:  Virtual Specimen Measurement Links to an external site.

If you do not have a ruler with inches available, practice measuring to the nearest ¼ inch by completing this interactive drawing activity. *Note:  This ruler may not be an accurate measurement tool, depending on the screen display settings.

  • Click the link above, and make a copy.
  • Enter your measurements in the table, or copy the chart into your math notebook.

In Your Math Notebook

Let’s get out our math journals and work through the following application problem. Make sure you read the problem carefully, draw a picture to match your thinking and write and solve an equation.

Read, Draw, Write, DONE!

R (Read the problem carefully.)

Isaac measured a piece of bark, and got a length of 2 ¼ inches.  His friend Jason said this can’t be right because Isaac didn’t line the bark up with the 0 mark.  Isaac’s teacher says that Isaac still got the correct answer.  How can Isaac prove to Jason that he got the correct measurement?

D (Draw a picture.)

W (Write and solve an equation.)

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