Tile the Room

Area, perimeter, unit-square tiling, and rectilinear shapes
Grade 3 · CCSS 3.MD.5 · 3.MD.6 · 3.MD.7 · 3.MD.8

1. Build Your Room

Change the length and width. Watch the tiles fill the room. See area and perimeter change together.

Area
24 square units
length × width = 6 × 4 = 24
Perimeter
20 units
6 + 4 + 6 + 4 = 20
A 6 by 4 rectangle. It takes 24 unit squares to cover it (area). Walking around the outside is 20 units (perimeter).

2. Guess First, Then Check

Read the question. Pick your answer. Then Lock In.

Score: 0 / 0
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3. Step-by-Step Machines

Watch every step. Notice the ⚠ trap in each machine.

    Adjust the sliders to see all the steps.
      Adjust the sliders to see all the steps.

      Pick a problem:

        Pick a problem to see all the steps.

        4. Tile the Room Quiz

        Ten questions. Pick the best answer, then Lock In.

        Question 0 of 10 · Score 0
         
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