Lesson 1

Number Sentences for Tile Designs

Est. Class Sessions: 2

Developing the Lesson

Part 3: Create Individual Tile Designs

Use the display of the Make Your Own Tile Design page in the Student Activity Book to demonstrate how to make a tile design, color the squares to match the design, and write a number sentence describing the colors, rows, columns, or diagonals.

Have students create their own designs with square inch tiles on the Make Your Own Tile Design pages. After creating their designs, ask students to color in the squares beneath the tiles to permanently record it. On the next page, they write a number sentence to describe their design and show how the number sentence fits the design by circling the appropriate word. Then have students exchange designs with a partner and write a different number sentence for their partner's design and explain how their number sentence fits the design. For each tile design, they combine the two number sentences to make a true statement, with two or more addends on each side of the equal sign. They work together and use strategies and tools to show how the new number sentence is a true statement.

Encourage students to use more than one color for their own tile designs. Explain that they do not have to fill every box on the grid with a color tile but they should fill at least half of the grid with tiles.

Assign the Tile Designs and Number Sentences pages in the Student Activity Book to assess students’ abilities to write number sentences and determine if number sentences are true or false. Have colored square-inch tiles, connecting cubes, number lines, and ten frames readily available.

Assign the Tile Designs and Number Sentences page in the Student Activity Book to assess students’ abilities to represent addition using square-inch tiles and number sentences [E3] and recognize that the equal sign represents the relationship between two equal quantities [E4].

To provide targeted practice of writing number sentences, place additional copies of the Make Your Own Tile Design pages from the Student Activity Book and an assortment of colored square-inch tiles in a learning center.

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