Lesson 1 Explore the Coordinate Grid
Let’s explore the coordinate grid.
Warmup Notice and Wonder: The Grid
What do you notice? What do you wonder?
Activity 1 Can You Draw It: Shapes on the Coordinate Grid
Play three rounds of Draw My Shape using the three sets of cards from your teacher.
For each round:
Partner A choose a card—without showing your partner—and describe the shape on the card.
Partner B draw the shape as described.
Partner A reveal the card and partner B reveal the drawing.

Compare the shapes and discuss: What’s the same? What’s different?
Round 1
Round 2
Round 3
Look at partner B’s drawings for each round. When does partner B’s drawing look most like the shape on the card? Explain why you think that is so.
Activity 2 Guess Which One: Shapes on the Coordinate Grid
Problem 1
Play a round of Guess Which One.
Sit next to your partner.
Partner A: Mentally choose a shape card without indicating which shape card you chose.
Partner B: Ask yes or no questions to determine which shape card partner A has chosen.
Switch roles and play another round of Guess Which One.
Problem 2
Diego and Kiran were playing a round of Guess Which One. These are the last two shapes. What question can Kiran ask to determine which shape is the one that Diego picked?
Practice Problem
Problem 1
How would you describe the point labeled
? How would you describe the rectangle R?