UNIT PREPARATION

Display the Math Practices page where all students can see it.

Students will need the following tools readily available for the Daily Practice and Problems items in this unit:

LESSON SESSIONS DESCRIPTION SUPPLIES

LESSON 1

What's Below Zero

 1 Students explore negative numbers in a variety of contexts and use number lines to represent numbers and solve problems.
  • calculators
  • scissors
  • tape or glue

LESSON 2

Introduce Coordinates

 2–3 Students learn to use Cartesian coordinates to locate points in all four quadrants.
  • paper
  • folders

LESSON 3

Using a Coordinate Map

 2–3 Students make a coordinate map of objects in the classroom. They then use the map and the map scale to estimate the distances between objects.
  • metersticks
  • centimeter rulers
  • calculators
  • masking tape
  • index cards
  • Mr. Origin

LESSON 4

Reading a Map

 1 Map reading is one of the most common uses of a coordinate system in everyday life. In this lesson, students use coordinates to locate and measure distances between locations.
  • centimeter rulers
  • calculators
  • chart paper
  • transparent centimeter ruler

LESSON 5

Plotting and Describing Shapes

 2–3 Students help José at The Great Shape Factory to plot and connect points to form shapes. After making and describing shapes using ordered pairs, students use the properties of the shapes to sort triangles and quadrilaterals.
  • ruler
  • scissors
  • large sheets of paper
  • chart paper

LESSON 6

Classifying Shapes

 2–3 Students classify polygons and justify those classifications based on geometric properties in the context of designing a “shapes zoo.”
  • scissors
  • large piece of paper
  • tape or glue stick
  • markers or crayons
  • envelopes or resealable bags
  • chart paper

LESSON 7

Workshop: Shapes Classification

 1 This Workshop lesson provides opportunities for students to address missing concepts, practice skills, or extend their learning as needed. Students further develop their abilities to describe, analyze, and classify two-dimensional shapes and their properties.
  • scissors
  • tape or glue stick
  • chart paper

LESSON 8

Midterm Test

 1–2 Students take a paper-and-pencil test that assesses skills and concepts studied in the first six units.
  • fraction circle pieces
  • ruler
  • calculator

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