Weekly Reader Connections

Teacher Guide: Lesson 5.4

The Weekly Reader Connections feature on Kids' Place Houghton Mifflin Math provides your students with additional information about the topics that appear in the Curriculum Connection feature in their student books.

The article “Saving Mount Rushmore“ explains geologists' concern over the erosion of the sculpture that forms one of our country's national monuments. Have the children read the article.

  • Mount Rushmore is carved into the mountain range called the Black Hills.
  • The sculptor Gutzon Borglum designed the huge sculpture. Borglum wanted to show not just the heads, but the figures of the presidents down to the waist. He died before he could do this.
  • Each head is 60 feet high.
  • The memorial was intended to stand for the achievements during our country's first 150 years. Each president stood for certain achievements.
  • George Washington stands for the fight for independence.
  • Thomas Jefferson stands for the idea of a government that represents all people.
  • Abraham Lincoln stands for equal treatment of all citizens.
  • Theodore Roosevelt stands for the role of the United States in the world.

In preparation for children's doing the Word Wise activity, explain that the letters “-ist,“ when used as a word ending, or suffix, mean “a person who specializes in a certain kind of learning.” Briefly identify the focus of the four kinds of science named:

  • geology: the study of the earth — the layers of soil, rocks, and minerals.
  • biology: the study of all living things — plants and animals.
  • chemistry: the study of how matter changes.
  • physics: the study of matter and energy, including light, motion, sound, heat, electricity, and force.

You may wish to have children use a dictionary for help in completing the four sentences.

  1. A scientist who studies geology is called a
    Answer: geologist.
  2. A scientist who studies biology is called a
    Answer: biologist.
  3. A scientist who studies chemistry is called a
    Answer: chemist.
  4. A scientist who studies physics is called a
    Answer: physicist.
Children are given two data references for the Data Hunt activity — a map and a table. They should refer to the map to find the location of Mount Rushmore and the relative distances between the South Dakota cities named in the table.

Houghton Mifflin Math Grade 3