## Teacher Guide: Lesson 16.3

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.

A wall map (or individual textbook maps) of South America should be made available to prepare students for reading the article “The Burning Amazon.” Have students trace the Amazon River from its origin in Peru across Brazil until it reaches the Atlantic Ocean. Then have students identify the countries through which the Amazon and its tributaries flow: Colombia, Ecuador, Peru, Bolivia, Venezuela, and Brazil.

For the Word Wise activity, students list vocabulary words that contain smaller words. Then they identify the smaller word(s) in each.
inhabitant (in, habit, bit, ant)
illegal (ill, leg, legal, gal)
transport (ran, an, sport, or, port)
inflict (in)
vitality (it, vital, lit, it)

The Data Hunt activity introduces students to the metric unit of area, the hectare, through three diagrams, which illustrate the relative equivalencies of the centimeter, the meter, and the hectare. Students answer the following questions.

1. How large is 1 square meter in centimeters? 10,000 cm2
2. How large is 1 hectare in meters? 10,000 m2
3. Suppose a rectangular ranch measures 12 hectares. What are its possible dimensions in meters?
100 m x 1,200 m; 200 m x 600 m; or 300 m x 400 m