Ratios and Area Calculations

This video tutorial for Grade 6 Unit 2 Lesson 2 focuses on transitioning from concrete to pictorial representations of ratios. It begins with a mental math warm-up, followed by exercises using snap cubes and paint mixing to illustrate ratios. Students engage in a card sort activity to match diagrams with sentences, reinforcing their understanding. The lesson concludes with practice problems and a review of key concepts, emphasizing the CPA (Concrete-Pictorial-Abstract) approach.

What is the result of dividing 24 by 4?

• 4

• 7

• 5

• 6

If you have 5 yellow cubes and 3 pink cubes, what is the ratio of yellow to pink?

• 3:2

• 2:3

• 5:3

• 3:5

In the paint mixing example, what is the ratio of cups of white paint to tablespoons of blue paint?

• 6:2

• 1:3

• 3:1

• 2:6

Which of the following is a correct equivalent ratio for 1:3?

• 4:1

• 5:3

• 3:2

• 2:6

In the card sorting activity, what is the ratio of cups of tomato sauce to tablespoons of oil to teaspoons of oregano?

• 5:1:2

• 2:5:1

• 2:1:5

• 1:5:2

What is the area of a square with a side length of 3 inches?

• 12 square inches

• 9 square inches

• 6 square inches

• 15 square inches

If a square has an area of 25 square feet, what is the length of one side?

• 7 feet

• 6 feet

• 4 feet

• 5 feet

What is the unit ratio of cups of pretzels to cups of raisins in the snack mix?

• 1:2

• 2:1

• 3:1

• 1:3

How many cups of almonds are there for every cup of raisins in the snack mix?

• 4

• 3

• 2

• 1

If the area of a square is 36 square centimeters, what is the length of each side?

• 6 cm

• 7 cm

• 5 cm

• 4 cm