Math Investigations

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Chapter 16

Part 1: For the problem in the Teacher's Edition, page 402

Provide students with the Problem Worksheet (PDF file).

Bring in magazines and have your students bring in magazines. Have your students look through the magazines to find pictures that show geometric figures. Have them use colored markers to outline the figures and name each figure according to the number of sides. You might want to set up a bulletin board to display what they have found.

A good time to do this investigation is after Lesson 3 on measuring angles.


  • protractors
  • rulers

Part 2: Be an Investigator

A good time to do this investigation is after Lesson 4 on reading and making line graphs.

Introducing the Investigation

Introduce the investigation by reading aloud the assignment at the top of the first page of the Description of Investigation and Student Report (PDF file), by having one of your students read aloud the assignment, or by having the students read the assignment individually.

Show examples of different fonts in books and in any kind of posters and/or signs you have in the room. Point out how a font has a consistent look in each of the letters in the font.

Put the students in groups of four to work on the investigation. Remind them that they only need to do the capital letters of the font.

Doing the Investigation

The students might want to divide the work of drawing the letters among the members of their group. As you observe the students working, make sure that they are measuring angles correctly with their protractors.

Select a word that each group will show in their font. Have each group write the word using their font and label the drawing with the name of the font and the names of the students in their group. Display these in the classroom.


Answers will vary.

Student Report

The letter back to Sophie Jensen gives the students an opportunity to show what they have done.

Extending the Investigation

Have the students create the lower-case letters for the font and show them in the same way as the capital letters.

Houghton Mifflin Math Grade 4